Test bank saladin anatomy and physiology unity of form and function 6th ch13

13 Student: _ The spinal cord conducts signals up and down the body passing through gray and white matter, respectively True False Cervical and lumbar enlargements are wide points in the spinal cord marking the emergence of motor nerves True False Each portion of the spinal cord served by a spinal nerve is called a segment of the cord True False Nerve fibers in a given tract in the white matter are similar in origin, destination, and function True False Motor signals typically begin in an upper motor neuron in the thalamus True False Most nerves are motor nerves True False A nerve fiber is enclosed in its own fibrous sleeve called perineurium True False A ganglion is a swelling along a nerve containing cell bodies of peripheral neurons True False A dermatome is a nerve innervating a specific region in the skin True False 10 Posterior root ganglia contain somas of unipolar neurons True False 11 Somatic reflexes are responses of skeletal, smooth, and cardiac muscles True False 12 The stretch reflex is a tendency of a muscle to stretch when it is overcontracted True False 13 A stretch reflex is often accompanied by reciprocal inhibition True False 14 The tendon reflex is the inhibition of a muscle contraction that occurs when its tendon is excessively stretched True False 15 The cross extension reflex is the contraction of the extensors on one side of the body when the flexors are contracted on the other side True False 16 The upper motor neurons that control skeletal muscles begin with a soma in A the posterior horn of the spinal cord B the anterior horn of the spinal cord C the motor association cortex of the cerebrum D the postcentral gyrus of the cerebrum E the precentral gyrus of the cerebrum 17 The signals that control your handwriting travel down the spinal cord in A the tectospinal tracts B the corticospinal tracts C the lateral vestibulospinal tracts D the medial vestibulospinal tracts E the spinocerebellar tracts 18 Many upper motor neurons synapse with lower motor neurons in A the posterior horns B the anterior horns C the posterior column D the anterior column E the posterior root ganglion 19 Which of the following sensory functions involves neurons in the posterior root ganglia? A smell B hearing C touch D taste E vision 20 The spinal cord is divided into all of the following regions except A cervical B thoracic C lumbar D pelvic E sacral 21 The following are all functions associated with the spinal cord except A to protect neurons in both the ascending and descending tracts B to mediate a reflex such as the withdrawal of a hand from pain C to conduct sensory information up to the brain D to conduct motor information down the cord E to coordinate the alternating contraction of several muscle groups associated with locomotion 22 Which of the following fractures would be the least likely to cause a spinal cord injury? A a fracture of vertebra C2 B a fracture of vertebra C6 C a fracture of vertebra T5 D a fracture of vertebra T12 E a fracture of vertebra L4 23 This figure shows a detail of the spinal cord, meninges, and spinal nerves What does "1" represent? A anterior horn B anterior root of a spinal nerve C posterior root of a spinal nerve D posterior horn E spinal nerve 24 This figure shows a detail of the spinal cord, meninges, and spinal nerves What does "4" represent? A gray matter B white matter C dura mater D arachnoid mater E pia mater 25 Epidural anesthesia is introduced in the epidural space between the _ to block pain signals during pregnancy A dural sheath and dura mater B dural sheath and vertebral bones C dura mater and arachnoid mater D arachnoid mater and pia mater E dura mater and pia mater 26 This figure shows a cross section of the spinal cord What does "3" represent? A anterior horn B posterior horn C anterior column D posterior column E anterior root of spinal cord 27 Cerebrospinal fluid fills in the space between the A dural sheath and dura mater B dural sheath and vertebral bones C dura mater and arachnoid mater D arachnoid mater and pia mater E dura mater and pia mater 28 Which of the following structures is the richest in lipid content? A gray matter B white matter C arachnoid mater D dura mater E pia mater 29 Gray matter contains A glial cells, axons of motor neurons, and Schwann cells B glial cells and myelinated fibers C neurosomas, dendrites, and proximal parts of axons of neurons D the distal part of axons of lower order motor neurons E glial cells only 30 _ carry motor commands from the brain along the spinal cord A Both anterior and posterior roots B Ascending tracts C Spinal nerves D Cranial nerves E Descending tracts 31 Second-order neurons synapse with third-order neurons in the A thalamus B dorsal root ganglion C spinal cord D cerebral cortex E medulla oblongata 32 _ keep(s) nerve fibers insulated from one another A Perineurium B Endoneurium C Fascicles D Epineurium E Blood vessels 33 _ fibers innervate eyes and ears A White B Visceral C Somatic D Special E General 34 A ganglion is a A bundle of axons in the CNS B cluster of dendrites in either the CNS or the PNS C cluster of neurosomas in the PNS D bundle of axons in the PNS E cluster of neurosomas in the CNS 35 There are pairs of spinal nerves A 12 B 24 C 31 D 35 E 62 36 This figure shows the anatomy of a nerve What does "3" represent? A nerve fiber B spinal nerve C epineurium D endoneurium E perineurium 37 This figure shows the posterior aspect of spinal nerve roots and plexuses What does "3" represent? A cervical plexus B brachial plexus C coccygeal plexus D sacral plexus E lumbar plexus 38 This figure shows the posterior aspect of spinal nerve roots and plexuses What does "2" represent? A the medulla oblongata B a bundle of spinal nerves C a bundle of cranial nerves D the cervical enlargement E the brachial enlargement 39 The ventral rami of the spinal nerves form nerve plexuses in all regions except A the thoracic region B the brachial region C the cervical region D the lumbar region E the sacral region 40 The cervical plexus gives origin to the _ nerve(s) A oculomotor B sciatic C musculocutaneous D radial E phrenic 41 Which of the following nerves originates in the lumbosacral plexus? A axillary B sciatic C phrenic D ilioinguinal E obturator 42 This figure shows a dermatome map A patient with no sensation in the left thumb would probably have a nerve damaged in A T1 B T5 C C5 D C6 E L3 43 Which of these is an ascending tract of the spinal cord? A the lateral tectospinal tract B the medial reticulospinal tract C the ventral corticospinal tract D the vestibulospinal tract E the gracile fasciculus 44 A mixed nerve consists of both A myelinated and unmyelinated fibers B glial cells and nerve cells C afferent and efferent fibers D association and integration neurons E spinal and cranial fibers 45 Which of the following branches of a spinal nerve have somas of solely sensory neurons? A posterior (dorsal) root B anterior (ventral) root C posterior ramus D anterior ramus E meningeal branch 46 The bundle of nerve roots that occupy the vertebral canal from L2 to S5 is called the A medullary cone B cauda equina C lumbar enlargement D cervical enlargement E spinal cord 47 Somatosensory refers to these sensory signals except the sensory signals from A bones and muscles B joints C proprioceptors D the viscera E the skin 48 Neurosomas of the posterior root are located in the _, whereas neurosomas of the anterior root are located in the _ A posterior root ganglion; gray matter B posterior root ganglion; white matter C gray matter; white matter D posterior root; anterior root E white matter; gray matter 49 A _ is a cordlike organ composed of numerous _ A nerve fiber; nerves B nerve fiber; axons C nerve; axons D nerve fiber; neurosomas E nerve; neurosomas 50 Which one of the following best describes the order of a somatic reflex? A somatic receptor → interneuron → afferent nerve fiber → efferent nerve fiber → skeletal muscle B somatic receptor → efferent nerve fiber → interneuron → afferent nerve fiber → skeletal muscle C somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → skeletal muscle D somatic receptor → efferent nerve fiber → afferent nerve fiber → interneuron → skeletal muscle E somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → smooth muscle 51 Which of the following groups of muscles have the most muscle spindles? A muscles of the hand B muscles of the back C muscles of the thigh D muscles of the middle-ear E muscles of the torso 52 These are all properties of reflexes except A reflex responses are very predictable B reflexes are responses to sensory inputs C reflexes are quick responses of the nervous system D reflexes are not voluntary E reflexes are spontaneous actions of the nervous system 53 A muscle spindle contains mostly A glial cells B muscle fibers C fascicles D nerves E nerve cells 54 A nurse pricks your finger to type your blood You flinch at the pain, pulling your hand back This is called the A painful reflex B stretch (myotatic) reflex C flexor (withdrawal) reflex D tendon reflex E crossed extension reflex 55 The quickest reflex arcs involve only two neurons, thus forming reflex arcs A ipsilateral B contralateral C polysynaptic D monosynaptic E autonomic 56 The flexor (withdrawal) reflex employs a , which maintains a sustained contraction A parallel after-discharge circuit B diverging circuit C converging circuit D closed circuit E reverberating circuit 57 If a bee sting on the right thigh causes a quick involuntary reaction of the right arm, this would be an example of A an ipsilateral reflex B an intersegmental reflex C a withdrawal reflex D a crossed extensor reflex E a contralateral reflex 58 The sensitivity of the muscle spindle is maintained by A a stretch reflex B alpha motor neurons C gamma motor neurons D anulospiral endings E secondary afferent (group II) fibers 59 The fibers that carry action potentials to cause skeletal muscle to contract are A gamma motor neurons B anulospiral endings C intrafusal fibers D extrafusal fibers E alpha motor neurons 60 You go to the movies after a long day and you begin to nod off as soon as the movie starts Your head starts to lower a little but this reflex causes your head to rise This is called the A tendon reflex B crossed extension reflex C withdrawal reflex D stretch (myotatic) reflex E flexor (withdrawal) reflex 61 In the patellar tendon reflex arc, the patellar ligament is stretched, which stretches the quadriceps femoris muscle of the thigh This reflex will cause the quadriceps femoris to A contract and the antagonist muscles, the hamstrings, to relax B contract and the hamstrings also to contract C relax and the hamstrings to contract D relax and the hamstrings also to relax E relax without any effect on the hamstrings 62 A reflex where the sensory input and motor output are on opposite sides of the spinal cord is called a(n) _ reflex arc A intersegmental B contralateral C ipsilateral D polysynaptic E monosynaptic 63 The tendon reflex A causes a muscle that is being stretched to contract B makes the contralateral motor neurons contract C makes the ipsilateral motor neurons relax D prevents overcontraction of a muscle E causes a tendon to contract 64 This reflex shows the least synaptic delay A polysynaptic reflex B cross extension reflex C withdrawal reflex D flexor reflex E tendon reflex 65 Tendon organs are A chemoreceptors B visceral receptors C proprioceptors D pain receptors E nociceptors 13 Key The spinal cord conducts signals up and down the body passing through gray and white matter, respectively FALSE Blooms Level: Remember Learning Outcome: 13.01.a State the three principal functions of the spinal cord Saladin - Chapter 13 #1 Section: 13.01 Topic: Nervous System Cervical and lumbar enlargements are wide points in the spinal cord marking the emergence of motor nerves FALSE Blooms Level: Understand Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #2 Section: 13.01 Topic: Nervous System Each portion of the spinal cord served by a spinal nerve is called a segment of the cord TRUE Blooms Level: Remember Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #3 Section: 13.01 Topic: Nervous System Nerve fibers in a given tract in the white matter are similar in origin, destination, and function TRUE Blooms Level: Remember Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #4 Section: 13.01 Topic: Nervous System Motor signals typically begin in an upper motor neuron in the thalamus FALSE Blooms Level: Understand Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #5 Section: 13.01 Topic: Nervous System Most nerves are motor nerves FALSE Blooms Level: Understand Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #6 Section: 13.02 Topic: Nervous System A nerve fiber is enclosed in its own fibrous sleeve called perineurium FALSE Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #7 Section: 13.02 Topic: Nervous System A ganglion is a swelling along a nerve containing cell bodies of peripheral neurons TRUE Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #8 Section: 13.02 Topic: Nervous System A dermatome is a nerve innervating a specific region in the skin FALSE Blooms Level: Apply Learning Outcome: 13.02.c Trace the branches of a spinal nerve distal to its attachments Saladin - Chapter 13 #9 Section: 13.02 Topic: Nervous System 10 Posterior root ganglia contain somas of unipolar neurons TRUE Blooms Level: Remember Learning Outcome: 13.02.b Describe the attachments of a spinal nerve to the spinal cord Saladin - Chapter 13 #10 Section: 13.02 Topic: Nervous System 11 Somatic reflexes are responses of skeletal, smooth, and cardiac muscles FALSE Blooms Level: Understand Learning Outcome: 13.03.a Define reflex and explain how reflexes differ from other motor actions Saladin - Chapter 13 #11 Section: 13.03 Topic: Nervous System 12 The stretch reflex is a tendency of a muscle to stretch when it is overcontracted FALSE Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #12 Section: 13.03 Topic: Nervous System 13 A stretch reflex is often accompanied by reciprocal inhibition TRUE Blooms Level: Understand Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #13 Section: 13.03 Topic: Nervous System 14 The tendon reflex is the inhibition of a muscle contraction that occurs when its tendon is excessively stretched TRUE Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #14 Section: 13.03 Topic: Nervous System 15 The cross extension reflex is the contraction of the extensors on one side of the body when the flexors are contracted on the other side TRUE Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #15 Section: 13.03 Topic: Nervous System 16 The upper motor neurons that control skeletal muscles begin with a soma in A the posterior horn of the spinal cord B the anterior horn of the spinal cord C the motor association cortex of the cerebrum D the postcentral gyrus of the cerebrum E the precentral gyrus of the cerebrum Blooms Level: Remember Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #16 Section: 13.01 Topic: Nervous System 17 The signals that control your handwriting travel down the spinal cord in A the tectospinal tracts B the corticospinal tracts C the lateral vestibulospinal tracts D the medial vestibulospinal tracts E the spinocerebellar tracts Blooms Level: Understand Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #17 Section: 13.01 Topic: Nervous System 18 Many upper motor neurons synapse with lower motor neurons in A the posterior horns B the anterior horns C the posterior column D the anterior column E the posterior root ganglion Blooms Level: Remember Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #18 Section: 13.01 Topic: Nervous System 19 Which of the following sensory functions involves neurons in the posterior root ganglia? A smell B hearing C touch D taste E vision Blooms Level: Apply Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #19 Section: 13.01 Topic: Nervous System 20 The spinal cord is divided into all of the following regions except A cervical B thoracic C lumbar D pelvic E sacral Blooms Level: Remember Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #20 Section: 13.01 Topic: Nervous System 21 The following are all functions associated with the spinal cord except A to protect neurons in both the ascending and descending tracts B to mediate a reflex such as the withdrawal of a hand from pain C to conduct sensory information up to the brain D to conduct motor information down the cord E to coordinate the alternating contraction of several muscle groups associated with locomotion Blooms Level: Apply Learning Outcome: 13.01.a State the three principal functions of the spinal cord Saladin - Chapter 13 #21 Section: 13.01 Topic: Nervous System 22 Which of the following fractures would be the least likely to cause a spinal cord injury? A a fracture of vertebra C2 B a fracture of vertebra C6 C a fracture of vertebra T5 D a fracture of vertebra T12 E a fracture of vertebra L4 Blooms Level: Evaluate Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #22 Section: 13.01 Topic: Nervous System Saladin - Chapter 13 23 This figure shows a detail of the spinal cord, meninges, and spinal nerves What does "1" represent? A B C D E anterior horn anterior root of a spinal nerve posterior root of a spinal nerve posterior horn spinal nerve Blooms Level: Remember Figure: 13.02b Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #23 Section: 13.01 Topic: Nervous System 24 This figure shows a detail of the spinal cord, meninges, and spinal nerves What does "4" represent? A B C D E gray matter white matter dura mater arachnoid mater pia mater Blooms Level: Remember Figure: 13.02b Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #24 Section: 13.01 Topic: Nervous System 25 Epidural anesthesia is introduced in the epidural space between the _ to block pain signals during pregnancy A dural sheath and dura mater B dural sheath and vertebral bones C dura mater and arachnoid mater D arachnoid mater and pia mater E dura mater and pia mater Blooms Level: Apply Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #25 Section: 13.01 Topic: Nervous System Saladin - Chapter 13 26 This figure shows a cross section of the spinal cord What does "3" represent? A anterior horn B posterior horn C anterior column D posterior column E anterior root of spinal cord Blooms Level: Remember Figure: 13.02b Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #26 Section: 13.01 Topic: Nervous System 27 Cerebrospinal fluid fills in the space between the A dural sheath and dura mater B dural sheath and vertebral bones C dura mater and arachnoid mater D arachnoid mater and pia mater E dura mater and pia mater Blooms Level: Remember Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #27 Section: 13.01 Topic: Nervous System 28 Which of the following structures is the richest in lipid content? A gray matter B white matter C arachnoid mater D dura mater E pia mater Blooms Level: Evaluate Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #28 Section: 13.01 Topic: Nervous System 29 Gray matter contains A glial cells, axons of motor neurons, and Schwann cells B glial cells and myelinated fibers C neurosomas, dendrites, and proximal parts of axons of neurons D the distal part of axons of lower order motor neurons E glial cells only Blooms Level: Apply Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #29 Section: 13.01 Topic: Nervous System 30 _ carry motor commands from the brain along the spinal cord A Both anterior and posterior roots B Ascending tracts C Spinal nerves D Cranial nerves E Descending tracts Blooms Level: Remember Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #30 Section: 13.01 Topic: Nervous System 31 Second-order neurons synapse with third-order neurons in the A thalamus B dorsal root ganglion C spinal cord D cerebral cortex E medulla oblongata Blooms Level: Remember Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #31 Section: 13.01 Topic: Nervous System 32 _ keep(s) nerve fibers insulated from one another A Perineurium B Endoneurium C Fascicles D Epineurium E Blood vessels Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #32 Section: 13.02 Topic: Nervous System 33 _ fibers innervate eyes and ears A White B Visceral C Somatic D Special E General Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #33 Section: 13.02 Topic: Nervous System 34 A ganglion is a A bundle of axons in the CNS B cluster of dendrites in either the CNS or the PNS C cluster of neurosomas in the PNS D bundle of axons in the PNS E cluster of neurosomas in the CNS Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #34 Section: 13.02 Topic: Nervous System 35 There are pairs of spinal nerves A 12 B 24 C 31 D 35 E 62 Blooms Level: Remember Learning Outcome: 13.02.b Describe the attachments of a spinal nerve to the spinal cord Saladin - Chapter 13 #35 Section: 13.02 Topic: Nervous System Saladin - Chapter 13 36 This figure shows the anatomy of a nerve What does "3" represent? A nerve fiber B spinal nerve C epineurium D endoneurium E perineurium Blooms Level: Remember Figure: 13.08a Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #36 Section: 13.02 Topic: Nervous System Saladin - Chapter 13 37 This figure shows the posterior aspect of spinal nerve roots and plexuses What does "3" represent? A B C D E cervical plexus brachial plexus coccygeal plexus sacral plexus lumbar plexus Blooms Level: Remember Figure: 13.10 Learning Outcome: 13.02.b Describe the attachments of a spinal nerve to the spinal cord Saladin - Chapter 13 #37 Section: 13.02 Topic: Nervous System 38 This figure shows the posterior aspect of spinal nerve roots and plexuses What does "2" represent? A B C D E the medulla oblongata a bundle of spinal nerves a bundle of cranial nerves the cervical enlargement the brachial enlargement Blooms Level: Remember Figure: 13.10 Learning Outcome: 13.02.b Describe the attachments of a spinal nerve to the spinal cord Saladin - Chapter 13 #38 Section: 13.02 Topic: Nervous System 39 The ventral rami of the spinal nerves form nerve plexuses in all regions except A the thoracic region B the brachial region C the cervical region D the lumbar region E the sacral region Blooms Level: Remember Learning Outcome: 13.02.c Trace the branches of a spinal nerve distal to its attachments Saladin - Chapter 13 #39 Section: 13.02 Topic: Nervous System 40 The cervical plexus gives origin to the _ nerve(s) A oculomotor B sciatic C musculocutaneous D radial E phrenic Blooms Level: Remember Learning Outcome: 13.02.c Trace the branches of a spinal nerve distal to its attachments Saladin - Chapter 13 #40 Section: 13.02 Topic: Nervous System 41 Which of the following nerves originates in the lumbosacral plexus? A axillary B sciatic C phrenic D ilioinguinal E obturator Blooms Level: Remember Learning Outcome: 13.02.c Trace the branches of a spinal nerve distal to its attachments Saladin - Chapter 13 #41 Section: 13.02 Topic: Nervous System Saladin - Chapter 13 42 This figure shows a dermatome map A patient with no sensation in the left thumb would probably have a nerve damaged in A T1 B T5 C C5 D C6 E L3 Blooms Level: Apply Figure: 13.19 Learning Outcome: 13.02.c Trace the branches of a spinal nerve distal to its attachments Saladin - Chapter 13 #42 Section: 13.02 Topic: Nervous System 43 Which of these is an ascending tract of the spinal cord? A the lateral tectospinal tract B the medial reticulospinal tract C the ventral corticospinal tract D the vestibulospinal tract E the gracile fasciculus Blooms Level: Remember Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Saladin - Chapter 13 #43 Section: 13.01 Topic: Nervous System 44 A mixed nerve consists of both A myelinated and unmyelinated fibers B glial cells and nerve cells C afferent and efferent fibers D association and integration neurons E spinal and cranial fibers Blooms Level: Understand Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #44 Section: 13.02 Topic: Nervous System 45 Which of the following branches of a spinal nerve have somas of solely sensory neurons? A posterior (dorsal) root B anterior (ventral) root C posterior ramus D anterior ramus E meningeal branch Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #45 Section: 13.02 Topic: Nervous System 46 The bundle of nerve roots that occupy the vertebral canal from L2 to S5 is called the A medullary cone B cauda equina C lumbar enlargement D cervical enlargement E spinal cord Blooms Level: Remember Learning Outcome: 13.01.b Describe its gross and microscopic structure Saladin - Chapter 13 #46 Section: 13.01 Topic: Nervous System 47 Somatosensory refers to these sensory signals except the sensory signals from A bones and muscles B joints C proprioceptors D the viscera E the skin Blooms Level: Understand Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #47 Section: 13.02 Topic: Nervous System 48 Neurosomas of the posterior root are located in the _, whereas neurosomas of the anterior root are located in the _ A posterior root ganglion; gray matter B posterior root ganglion; white matter C gray matter; white matter D posterior root; anterior root E white matter; gray matter Blooms Level: Remember Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #48 Section: 13.02 Topic: Nervous System 49 A _ is a cordlike organ composed of numerous _ A nerve fiber; nerves B nerve fiber; axons C nerve; axons D nerve fiber; neurosomas E nerve; neurosomas Blooms Level: Understand Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Saladin - Chapter 13 #49 Section: 13.02 Topic: Nervous System 50 Which one of the following best describes the order of a somatic reflex? A somatic receptor → interneuron → afferent nerve fiber → efferent nerve fiber → skeletal muscle B somatic receptor → efferent nerve fiber → interneuron → afferent nerve fiber → skeletal muscle C somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → skeletal muscle D somatic receptor → efferent nerve fiber → afferent nerve fiber → interneuron → skeletal muscle E somatic receptor → afferent nerve fiber → interneuron → efferent nerve fiber → smooth muscle Blooms Level: Remember Learning Outcome: 13.03.b Describe the general components of a typical reflex Saladin - Chapter 13 #50 Section: 13.03 Topic: Nervous System 51 Which of the following groups of muscles have the most muscle spindles? A muscles of the hand B muscles of the back C muscles of the thigh D muscles of the middle-ear E muscles of the torso Blooms Level: Evaluate Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #51 Section: 13.03 Topic: Nervous System 52 These are all properties of reflexes except A reflex responses are very predictable B reflexes are responses to sensory inputs C reflexes are quick responses of the nervous system D reflexes are not voluntary E reflexes are spontaneous actions of the nervous system Blooms Level: Apply Learning Outcome: 13.03.a Define reflex and explain how reflexes differ from other motor actions Saladin - Chapter 13 #52 Section: 13.03 Topic: Nervous System 53 A muscle spindle contains mostly A glial cells B muscle fibers C fascicles D nerves E nerve cells Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #53 Section: 13.03 Topic: Nervous System 54 A nurse pricks your finger to type your blood You flinch at the pain, pulling your hand back This is called the A painful reflex B stretch (myotatic) reflex C flexor (withdrawal) reflex D tendon reflex E crossed extension reflex Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #54 Section: 13.03 Topic: Nervous System 55 The quickest reflex arcs involve only two neurons, thus forming reflex arcs A ipsilateral B contralateral C polysynaptic D monosynaptic E autonomic Blooms Level: Understand Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #55 Section: 13.03 Topic: Nervous System 56 The flexor (withdrawal) reflex employs a , which maintains a sustained contraction A parallel after-discharge circuit B diverging circuit C converging circuit D closed circuit E reverberating circuit Blooms Level: Understand Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #56 Section: 13.03 Topic: Nervous System 57 If a bee sting on the right thigh causes a quick involuntary reaction of the right arm, this would be an example of A an ipsilateral reflex B an intersegmental reflex C a withdrawal reflex D a crossed extensor reflex E a contralateral reflex Blooms Level: Apply Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #57 Section: 13.03 Topic: Nervous System 58 The sensitivity of the muscle spindle is maintained by A a stretch reflex B alpha motor neurons C gamma motor neurons D anulospiral endings E secondary afferent (group II) fibers Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #58 Section: 13.03 Topic: Nervous System 59 The fibers that carry action potentials to cause skeletal muscle to contract are A gamma motor neurons B anulospiral endings C intrafusal fibers D extrafusal fibers E alpha motor neurons Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #59 Section: 13.03 Topic: Nervous System 60 You go to the movies after a long day and you begin to nod off as soon as the movie starts Your head starts to lower a little but this reflex causes your head to rise This is called the A tendon reflex B crossed extension reflex C withdrawal reflex D stretch (myotatic) reflex E flexor (withdrawal) reflex Blooms Level: Apply Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #60 Section: 13.03 Topic: Nervous System 61 In the patellar tendon reflex arc, the patellar ligament is stretched, which stretches the quadriceps femoris muscle of the thigh This reflex will cause the quadriceps femoris to A contract and the antagonist muscles, the hamstrings, to relax B contract and the hamstrings also to contract C relax and the hamstrings to contract D relax and the hamstrings also to relax E relax without any effect on the hamstrings Blooms Level: Apply Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #61 Section: 13.03 Topic: Nervous System 62 A reflex where the sensory input and motor output are on opposite sides of the spinal cord is called a(n) _ reflex arc A intersegmental B contralateral C ipsilateral D polysynaptic E monosynaptic Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #62 Section: 13.03 Topic: Nervous System 63 The tendon reflex A causes a muscle that is being stretched to contract B makes the contralateral motor neurons contract C makes the ipsilateral motor neurons relax D prevents overcontraction of a muscle E causes a tendon to contract Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #63 Section: 13.03 Topic: Nervous System 64 This reflex shows the least synaptic delay A polysynaptic reflex B cross extension reflex C withdrawal reflex D flexor reflex E tendon reflex Blooms Level: Apply Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #64 Section: 13.03 Topic: Nervous System 65 Tendon organs are A chemoreceptors B visceral receptors C proprioceptors D pain receptors E nociceptors Blooms Level: Remember Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 #65 Section: 13.03 Topic: Nervous System 13 Summary Category Blooms Level: Remember Blooms Level: Understand Blooms Level: Apply Blooms Level: Evaluate Figure: 13.02b Figure: 13.08a Figure: 13.10 Figure: 13.19 Learning Outcome: 13.01.a State the three principal functions of the spinal cord Learning Outcome: 13.01.b Describe its gross and microscopic structure Learning Outcome: 13.01.c Trace the pathways followed by nerve signals traveling up and down the spinal cord Learning Outcome: 13.02.a Describe the anatomy of nerves and ganglia in general Learning Outcome: 13.02.b Describe the attachments of a spinal nerve to the spinal cord Learning Outcome: 13.02.c Trace the branches of a spinal nerve distal to its attachments Learning Outcome: 13.03.a Define reflex and explain how reflexes differ from other motor actions Learning Outcome: 13.03.b Describe the general components of a typical reflex Learning Outcome: 13.03.c Explain how the basic types of somatic reflexes function Saladin - Chapter 13 Section: 13.01 Section: 13.02 Section: 13.03 Topic: Nervous System # of Questions 40 11 11 3 2 14 12 18 70 23 21 21 65 ... glial cells, axons of motor neurons, and Schwann cells B glial cells and myelinated fibers C neurosomas, dendrites, and proximal parts of axons of neurons D the distal part of axons of lower order... muscle 51 Which of the following groups of muscles have the most muscle spindles? A muscles of the hand B muscles of the back C muscles of the thigh D muscles of the middle-ear E muscles of the torso... consists of both A myelinated and unmyelinated fibers B glial cells and nerve cells C afferent and efferent fibers D association and integration neurons E spinal and cranial fibers 45 Which of the