anatomy and physiology of the reproductive system

... understanding of the anatomy and function of the ear and the auditory nervous system, and it discusses the cause and treatment of hearing disorders Most books on hearing focus either on the anatomy ... original work on the different subjects Understanding of the anatomy and the function of the auditory system together with knowledge about the pathophysiology of the auditory system are essential ... function of the cochlea than of any other sensory organ C H A P T E R Anatomy of the Ear ABSTRACT 10 The ear consists of the outer ear, the middle ear and the inner ear The outer ear consists of the...

Ngày tải lên: 11/08/2014, 06:21

... at the entrance of the ear canal compared with the sound pressure that is measured in the place of the head The effect of the head on the sound at the entrance of the ear canal is related to the ... ratio between the effective area of the tympanic membrane and the area of the stapes footplate, but the lever ratio of the middle ear bones also contributes The ratio of areas of the BOX 2.2 SOUND ... remarkable in the light of the FIGURE 2.12 (A) Average displacements of the umbo, the head of the stapes and the lenticular process of the incus (B) The lever ratio at 124 dB SPL at the tympanic...

Ngày tải lên: 11/08/2014, 06:21

... anatomy and physiology of the auditory nervous system of clinical importance Most studies of the function of the auditory system have aimed at the coding of different kinds of sounds in the auditory ... in the ventral parts of the MGB of the thalamus, the nonclassical sensory pathways use the dorsal and medial division of the MGB as relay (Fig 5.10) [122] These divisions of the MGB receive their ... of the fourth ventricle (Fig 5.15B) [72] The other part of the olivocochlear system projects mainly to the contralateral cochlea and the fibers of that system travel deeper in the brainstem The...

Ngày tải lên: 11/08/2014, 06:21

... The caudal portion of the floor of the lateral recess is the (dorsal) surface of the dorsal cochlear nucleus and the rostral portion of the floor of the lateral recess is the dorsal surface of ... difference between the latency of the N1 of the AP and that of the response from the intracranial portion of the auditory nerve is the travel time in the auditory nerve from the ear to the recording ... the latency of the first peak in the dipole and the length is the relative strength of the dipoles Note the short distance between the two first dipoles (peak I and II of the ABR) and the third...

Ngày tải lên: 11/08/2014, 06:21

... and standard error of the mean are shown as a function of the intensity of the noise The TTS was measured 20 s after the end of the exposure In this study the noise exposure consisted of a band ... basis of the elevation of the hearing threshold in disorders of the middle ear and the cochlea but the effect on the function of the nervous system may affect speech discrimination Impairment of speech ... decreases the input to the cochlea and thereby decreases the contraction of the stapedius muscle, and that in turn causes the input to the cochlea to again increase, and that increases the contraction...

Ngày tải lên: 11/08/2014, 06:21

... increase the sensitivity and frequency selectivity of the ear (cf Chapter 3) The widening of the tuning of the basilar membrane broadens the “slices” of the spectrum of broad band sounds from which the ... noninvasively The outcome of the test depends on fine details of the anatomy of the stapes and its suspension in the oval window, the incudo-stapedial joint and the orientation of its plane surface ... this view of flexibility of the function of the auditory system That injury and loss of cochlear hair cells can cause profound changes in the structure and function of the central auditory system...

Ngày tải lên: 11/08/2014, 06:21

... tinnitus and abnormal perception of sounds such as hyperacusis and phonophobia) are some of the most diverse and complex disorders of the auditory system and their causes are often obscure Often ... corresponding to the F1 frequency and the other corresponding to the frequency of F2 The rate of the impulses is that of F0 for voiced sounds, and a quasi-random rate (average of 100 pps) for ... determined on the basis of the output of 16 band-pass filters The output of the six band-pass filters with the largest amplitudes is coded in the impulses that are applied to the electrodes in the cochlea...

Ngày tải lên: 11/08/2014, 06:21

... human and rat CB1 receptor The CB2 antibody was raised against a sequence between the N-terminal and the first transmembrane domain of the protein of the human and rat CB2 receptor The specificity of ... marrow stem cells, are the most potent antigen-presenting cells of the immune system They play a central role in the initiation of primary immune response and in the enhancement of secondary immune ... for AEA, PalEtn and 2AG, respectively Analysis of cannabinoid receptors and fatty acid amide hydrolase To determine the presence of the cannabinoid receptors (CB1 and CB2) and of the fatty acid...

Ngày tải lên: 22/02/2014, 07:20

... The spin axes of the Sun and the planets 7.4.1 Spin axes and the Solar Nebula Theory 7.4.2 Spin axes and the Modern Laplacian Theory 7.4.3 Spin axes and the Accretion Theory 7.4.4 Spin axes and ... Newton the basic structure of the solar system and the laws that govern the motions of the bodies within it have been well understood One central body, the Sun, containing most of the mass of the system ... picture of the origin and evolution of the solar system is the Capture Theory developed by the author and colleagues since the early 1960s This explains the basic structure of the solar system...

Ngày tải lên: 17/03/2014, 13:35

... 90–15) and 255 (M+ – 131) The loss of mass 131 results from the scission of the C1–C2 and C4–C5 bonds Figure 4C illustrates mass spectra of isolated 7-DHP-MO-TMS, and the synthesized standard The ... (Invitrogen), and the isolation of RNA followed the manufacture’s protocol The synthesis of first-strand cDNA was performed using the Superscript preamplification system (Invitrogen) Either lg of total ... investigation on the cutaneous expression of each of the components of the P450scc enzymatic system In addition, we tested reconstituted and mitochondrial P450scc systems for their ability to...

Ngày tải lên: 23/03/2014, 13:20

... The spin axes of the Sun and the planets 7.4.1 Spin axes and the Solar Nebula Theory 7.4.2 Spin axes and the Modern Laplacian Theory 7.4.3 Spin axes and the Accretion Theory 7.4.4 Spin axes and ... Newton the basic structure of the solar system and the laws that govern the motions of the bodies within it have been well understood One central body, the Sun, containing most of the mass of the system ... picture of the origin and evolution of the solar system is the Capture Theory developed by the author and colleagues since the early 1960s This explains the basic structure of the solar system...

Ngày tải lên: 24/04/2014, 17:26

... deeper understanding of the intimate co-evolution of pathogens and the immune system 10 11 12 13 14 Acknowledgements The author’s research is supported by grants from the Wellcome Trust, the Medical ... pathogens demanding conflicting response patterns, the fine-tuning effect of multiple allelic variants allows the immune system to be variably calibrated across the population In the absence of infection, ... to the development of damaging immune reactions in autoimmunity and allergy The identification of precise genetic variants controlling both parasite susceptibility and immunopathology offers the...

Ngày tải lên: 06/08/2014, 19:20

... Commission,
UK
Financial
Services
Authority, and, 
in the United
States, the Office of the Comptroller of the Currency, the Securities and Exchange
Commission, and the Federal
Reserve.
For
their
joint
review,
see
SSG
2008.

 ... of life),
 the Act
 mandates
 the formulation
 of so‐called
 “living
 wills”
 in
 the form
 of the preparation
 of resolution
plans and credit
exposure
reports.

 The Act
calls
upon the Board of Governors of the Fed
to
require
nonbank
financial
companies and bank
 ... its
assets,
all
institutions
ultimately
rely
on the banking system for
support
in the case of a
shortfall of cash
inflows and the need
to
refinance
their
liabilities. And the banking system relies
on the Fed.
Thus,
 limiting
discount
lending
to the banks
means
allowing
a
liquidity
crisis
to
morph
into
an
insolvency
crisis
...

Ngày tải lên: 23/09/2015, 08:52

... Near the end of the compression stroke, the spark ignites the compressed air-fuel mixture, raising the temperature of the gases in the cylinder to the range of few thousands of degrees, and increasing ... supplied to the engine, otherwise known as the “charge” of the engine In the scenario where the only method of charging the engine is by the vacuum pressure created by the expanding of the combustion ... intake system, to reduce the impact of the air restrictor on the entire engine system Location of Engine The dominant design of the Formula SAE race car has the engine located in the rear of the...

Ngày tải lên: 04/10/2015, 10:25

... each of these features is discussed in more detail THE EARLY INNATE IMMUNE RESPONSE TO MICROBES The principal barriers between the host and the environment are the epithelia of the skin and the ... affinity of the leukocyte integrins for their ligands on the endothelium Concurrently, TNF and IL-1 act on the endothelium to stimulate expression of ligands for integrins The firm binding of integrins ... Potential for immunotherapy of cancer FIGURE 1-1 The importance of the immune system in health and disease This table summarizes some of the physiologic functions of the immune system Note that...

Ngày tải lên: 04/08/2016, 15:18

... Across the top are the two genetically possible types of eggs the mother could produce, and on the left side are the possible types of sperm from the father The four cells of the square show the ... flashcards, and much more that will complement your learning and understanding of anatomy and physiology Saladin: Anatomy & Physiology: The Unity of Form and Function, Third Edition Genetics and Cellular ... epidermis and nervous system The inner layer, the endoderm,4 gives rise to the mucous membranes of the digestive and respiratory tracts and to the digestive glands, among other things Between these...

Ngày tải lên: 12/08/2014, 16:21

... on the other The head of the humerus fits into the glenoid cavity of the scapula, and the head of the femur fits into the acetabulum of the os coxae These are the only multiaxial joints of the ... Movements of the Scapulae and Mandible (a) Elevation of the scapulae; (b) depression of the scapulae; (c) protraction of the mandible; (d) retraction of the mandible; (e) lateral excursion of the mandible; ... example is the atlantooccipital joint of the neck, where the muscles of the back of the neck pull down on the nuchal lines of the skull and oppose the tendency of the head to tip forward Loss of muscle...

Ngày tải lên: 12/08/2014, 16:21

... from the shoulder and upper chest and inserts platy ϭ flat 25 broadly along the mandible and overlying skin It depresses the mandible, helps to open and widen the mouth, and tenses the skin of the ... They arise from the pterygoid processes of the sphenoid bone and insert on the medial surface of the mandible (fig 10.9b) The pterygoids elevate and protract the mandible and produce the lateral ... broad muscle of the back that extends from the waist to the axilla These muscles bear the primary responsibility for attachment of the arm to the trunk, and they are the prime movers of the shoulder...

Ngày tải lên: 12/08/2014, 16:21

... reflexes The autonomic nervous system has two further divisions: nervous system, and these subsystems are interconnected parts of the whole Saladin: Anatomy & Physiology: The Unity of Form and Function, ... its physiology, and modify that of other organs Thus, these systems functionally coordinate the organs of the body and play a central role in maintaining homeostasis The scientific study of the ... system is called neuroscience It includes neuroanatomy, the study of structure, and neurophysiology, the study of function The branch of medicine that deals with the diagnosis and treatment of...

Ngày tải lên: 12/08/2014, 16:21

... the two types of tissue in the central nervous system and state their locations; • describe the gross and microscopic anatomy of the spinal cord; and • name the major conduction pathways of the ... “gateway” called the thalamus at the upper end of the brainstem; and a third-order neuron that carries the signal the rest of the way to the sensory region of the cerebral cortex The axons of these neurons ... part of the ganglion.) Where are the somas of the motor neurons located? of the back The ventral ramus innervates the ventral and lateral skin and muscles of the trunk and gives rise to nerves of...

Ngày tải lên: 12/08/2014, 16:21