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Trang 1Test Bank for Fundamentals of Anatomy and Physiology 8th Edition by Martini
Link download full: fundamentals-of-anatomy-and-physiology-8th-edition-by-martini
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Chapter 10 Muscle Tissue
Multiple Choice Questions
1)
Which of the following is a recognized function of skeletal muscle?
1 A) produce movement
1 B)maintain posture
1 C) maintain body temperature
1 D) guard body entrances and exits
1 E) all of the above
Which of the following statements is incorrect?
1 A) The contractions of skeletal muscles pull on tendons and move bones of the skeleton
1 B) Skeletal muscles store nutrient reserves
Trang 21 C) Skeletal muscles are responsible for the pumping action of the heart
1 D) Skeletal muscles support the weight of some internal organs
1 E) Skeletal muscle contractions help maintain body temperature
Nerves and blood vessels that service the muscle fibers are located in the
connective tissues of the
1 A) endomysium
1 B) perimysium
1 C) sarcolemma
Trang 7have many nuclei
1 E)
both B and C
Trang 8Level 1 Questions: Reviewing Facts and Terms
Trang 10
myofibrils
1 C)
myoblasts
1 D)
fascicles
1 E)
myomeres
Trang 11Level 1 Questions: Reviewing Facts and Terms
Trang 14Level 1 Questions: Reviewing Facts and Terms
Trang 17Level 1 Questions: Reviewing Facts and Terms
Trang 191 B)
M line
1 C)
H band
1 D)
A band
1 E)
I band
Trang 221 B)
M line
1 C)
H band
1 D)
A band
1 E)
I band
Trang 311 B)
myosin molecules
1 C)
troponin molecules
1 D)
tropomyosin molecules
Trang 341 B)
myosin molecules
1 C)
troponin molecules
1 D)
ATP molecules
Trang 371 D)
synaptic cleft
Trang 401 B)
neuromuscular junctions
Trang 431 B)
sodium ions
1 C)
potassium ions
1 D)
calcium ions
1 E)
hydrogen ions
Trang 48diffusion of calcium out of the cell
Trang 55incomplete tetanus
1 B)
complete tetanus
Trang 58
an end foot
1 B)
an end plate
1 C)
a motor unit
1 D)
a dermatome
1 E)
a myotome
Answer:
C
Trang 61
1 A)
tetany
1 B)
treppe
1 C)
concentric
1 D)
isotonic
1 E)
isometric
Answer:
E
Trang 761 A)
fast
1 B)
slow
1 C)
intermediate
1 D)
anaerobic
1 E)
high-density
Answer:
B
Trang 81high amounts of oxygen
Trang 86all of the above
Trang 89The thin filaments of smooth muscle fibers are attached to dense bodies
Trang 95none of the above
Trang 98All of these are well known
Trang 101all of the above
Trang 104all of the above
Trang 107All are true
Trang 110Relaxation requires uptake of calcium ion by the sarcoplasmic reticulum
Trang 117the Z lines move closer together
Trang 118Level 2 Questions: Reviewing Concepts
Trang 121Level 2 Questions: Reviewing Concepts
Trang 124Level 2 Questions: Reviewing Concepts
Trang 1261 Myosin cross-bridges bind to the actin
2 The free myosin head splits ATP
3 Calcium ion is released from the sarcoplasmic reticulum
4 The myosin head pivots toward the center of the sarcomere
5 Calcium ion binds to troponin
6 The myosin head binds an ATP molecule and detaches from the actin
The correct sequence of these events is
Trang 127
1 A)
1, 3, 5, 4, 6, 2
1 B)
5, 1, 4, 6, 2, 3
1 C)
3, 5, 1, 2, 4, 6
1 D)
3, 5, 1, 4, 6, 2
1 E)
1, 4, 6, 2, 3, 5
Answer:
D
Trang 139an increase in intracellular lactate
Trang 143It would produce uncontrolled muscle spasms
Trang 144Level 3 Questions: Critical Thinking & Clinical Applications
Trang 147Level 3 Questions: Critical Thinking & Clinical Applications
Trang 148Level 1 Questions: Reviewing Facts and Terms
Figure 10-1 Skeletal Muscle Fiber
Trang 149Answer:
D
Trang 1521 A)
1
1 B)
2
1 C)
4
1 D)
8
1 E)
9
Answer:
E
Trang 1551 A)
4
1 B)
5
1 C)
6
1 D)
7
1 E)
8
Answer:
B
Trang 1581 A)
6
1 B)
7
1 C)
1
1 D)
3
1 E)
2
Answer:
A
Trang 1611 A)
6
1 B)
7
1 C)
1
1 D)
3
1 E)
2
Answer:
C
Trang 163Level 2 Questions: Reviewing Concepts
Figure 10-2 Muscle Contractions
Use Figure 10-2 to answer the following questions:
Trang 166The muscle is starting to fatigue
Trang 167Level 2 Questions: Reviewing Concepts
Trang 169incomplete tetanus
Trang 170Level 2 Questions: Reviewing Concepts
Trang 171Level 2 Questions: Reviewing Concepts
Short Answer Questions
Trang 1752 B) elevates the rate of energy consumption in resting and active skeletal muscles
3 C) stimulates muscle metabolism and increases duration and stimulation of the force of a contraction
4 D) activates myosin light chain kinase
5 E) red pigment in slow fibers
Trang 1762 B) surrounded by sarcoplasmic reticulum and consists of sarcomeres
3 C) surrounded by epimysium and contains muscle fascicles
4 D) surrounded by perimysium and contains muscle fibers
5 E) contains thick and thin filaments
Trang 180Level 2 Questions: Reviewing Concepts
Essay Questions
1)
Mary wants to enter a weight-lifting competition and consults you as to what type
of muscle fibers she needs to develop and how she should go about it What would you suggest to her?
Answer:
Weight lifting requires anaerobic endurance Mary would want to develop her fast fibers for short-term maximum strength She would achieve this by engaging in activities that involve frequent, brief, but intensive workouts, such as with heavy weights to the point of muscle fatigue The fatigue triggers the production of new myofilament proteins, leading to muscle bulk and strength
Trang 181The action potential triggers the exocytosis of neurotransmitters stored in vesicles
in the axon ending This acetylcholine binds to receptors in the motor end plate, increasing the muscle membrane permeability to sodium Acetylcholinesterase destroys the acetylcholine, ensuring that each nerve action potential produces only
a single twitch The influx of these positive sodium ions triggers an action
potential The action potential spreads in both directions away from the end plate across the entire surface of the muscle fiber and into the interior via transverse tubules, triggering a pulse of calcium ion release from the sarcoplasmic reticulum, which generates a brief small twitch With additional stimuli, calcium ion builds up and higher tensions are produced
Trang 182Answer:
Gap junctions interconnect visceral smooth muscle fibers An action potential that begins in one will spread to its surrounding neighbors The action potential can be triggered by stretching, hormones, chemical changes, or stimulation at a myoneural junction on a distant smooth muscle cell
Answer:
This is a case of competition between acetylcholine and the antibody To make the patient’s acetylcholine more effective, a drug that inhibits acetylcholinesterase would slow the breakdown of his acetylcholine, relieving some of the weakness
An acetylcholine blocker would be worse than doing nothing
Diff: 3
Trang 183
Answer:
If muscle damage occurred, the doctor would find enzymes such as creatine
phosphokinase and proteins such as myoglobin or troponin in the bloodstream released by injured skeletal muscle cells The level of these substances correlates with the severity of the injury
Trang 184
Diff: 1
Skill:
Level 1 Questions: Reviewing Facts and Terms
Fundamentals of Anatomy & Physiology: 8th Edition Study Aid Test Bank