ESSENTIALS OF HUMAN ANATOMY-MODIFIED MA
12th Edition
ISBN: 9781323850497
Author: Marieb
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 10MC
Sounds entering the external acoustic meatus are eventually converted to nerve impulses via a chain of events including
a. vibration of the eardrum.
b. vibratory motion of the ossicles against the oval window.
c. stimulation of hair cells in the spiral organ of Corti.
d. resonance of the cupula.
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Which of the following is accurate about the maculae of the vestibular apparatus?
a. They detect rotational movements of the head.
b. They are located in the semicircular canal.
c. Nerve signals are generated when the otolithic membrane bends the stereocilia of the hair cells.
d. They are the organs of hearing.
Regarding auditory physiology, what is the mechanism that generates an action potential and release of neurotransmitter substance?
a) pressure waves on cells in the vestibular membrane
b) movement of the membrane covering the round window
c) movement of the hair cells of the coil member towards the tectorial membrane
d) movement of cells in the basement membrane towards the cochlea
If the auditory cortex is damaged, the individual will respond to sounds and have normal acoustic reflexes, but (a) the sounds may produce nerve deafness. (b) the auditory ossicle may be immobilized. (c) sound interpretation and pattern recognition may be impossible. (d) normal transfer of vibration to the oval window is inhibited.
Chapter 8 Solutions
ESSENTIALS OF HUMAN ANATOMY-MODIFIED MA
Ch. 8 - Prob. 1MCCh. 8 - Alkaloids excite gustatory hairs mostly at the a....Ch. 8 - Prob. 3MCCh. 8 - Which cranial nerve controls contraction of the...Ch. 8 - The cornea is nourished by a. corneal blood...Ch. 8 - When the eye focuses for far vision, a. the lens...Ch. 8 - Convergence a. requires contraction of the medial...Ch. 8 - 8. Which of the following are paired...Ch. 8 - Movement of the ______ membrane triggers bending...Ch. 8 - 10. Sounds entering the external acoustic meatus...
Ch. 8 - Prob. 11SAECh. 8 - Prob. 12SAECh. 8 - 13. Diagram and label the internal structures of...Ch. 8 - Prob. 14SAECh. 8 - Prob. 15SAECh. 8 - 16. What is the blind spot, and why is it so...Ch. 8 - What name is given to the structure that controls...Ch. 8 - What is the fovea centralis, and why is it...Ch. 8 - 19. Trace the pathway of light from the time it...Ch. 8 - Prob. 20SAECh. 8 - 21. Define hyperopia, myopia, and emmetropia.
Ch. 8 - Prob. 22SAECh. 8 - Prob. 23SAECh. 8 - Prob. 24SAECh. 8 - Many students struggling through mountains of...Ch. 8 - Prob. 26SAECh. 8 - Prob. 27SAECh. 8 - Prob. 28SAECh. 8 - Prob. 29SAECh. 8 - Prob. 30SAECh. 8 - Prob. 31SAECh. 8 - Prob. 32SAECh. 8 - Prob. 33SAECh. 8 - Which special sense requires the most learning?Ch. 8 - 35. For each of the following descriptions,...Ch. 8 - An engineering student has been working in...Ch. 8 - Prob. 37CTCh. 8 - Prob. 38CTCh. 8 - Brandon suffered a ruptured artery in his middle...Ch. 8 - Prob. 40CTCh. 8 - Prob. 41CTCh. 8 - 42. Julie and her father love to find the...Ch. 8 - Prob. 43CTCh. 8 - 44. Mrs. Garson has an immune disorder that causes...Ch. 8 - Prob. 45CTCh. 8 - Explain the role of vitamin A in vision.
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- Jill is diagnosed with sensorineural deafness, a disorder in which sound waves are transmitted normally to the inner ear but they are not translated into neural signals that travel to the brain. Sometimes the cause is a problem with the auditory nerve, but in Jills case it has to do with a problem in the inner ear itself. Where in the inner ear is the disruption most likely to be located?arrow_forwardWhere are the auditory receptors, known as hair cells? A. In the auditory nerve B. Along the basilar membrane of the cochlea C. Between the incus and the stapes D. In the pinnaarrow_forwardVisual information from the lateral geniculate area goes next to the: a. hypothalamus b. retina c. primary visual cortex d. thalamus 2. Which of the following are receptor cells of the auditory system? a. rods and cones b. hair cells c. basilar membranes d. sound bulbsarrow_forward
- Which statement is accurate about the cochlear duct? a. It detects linear acceleration of the head when the otolithic membrane bends the hair cells. b. It is filled with perilymph. c. It contains hair cells that convert sound waves into nerve signals. d. It contains a spiral organ that rests on a vestibular membrane.arrow_forwardWhich ear structure is correctly matched with its function? a. round window; transmits sound waves into the inner ear b. external acoustic meatus; directs sound waves to the tympanic membrane c. auditory ossicles; dampen sound waves before they reach the inner ear d. vestibular membrane; bends the stereocilia on hair cells to produce a nerve signalarrow_forwardWhat is the primary function of the external auditory meatus? a. amplify sounds b. funnel sounds to the middle ear c. amplify sounds and funnel sound to the middle ear d. discriminate sound based on frequencyarrow_forward
- Which one of these correctly describes the location of the spiral organ? a. between the tympanic membrane and the oval window in theinner ear b. in the utricle and saccule within the vestibule c. between the tectorial membrane and the basilar membrane in thecochlear canal d. between the nasal cavities and the throat e. between the outer and inner ear within the semicircular canalsarrow_forwardThe ear is somewhat protected from loud noises by a. the vestibule. b. the modiolus. c. the stapes. d. the stapedius. e. the superior rectusarrow_forwardAs people age, the lens of the eye becomes ____, which leads to a type of farsightedness called _____. a. less flexible; hyperopia b. less flexible; presbyopia c. more flexible; hyperopia d. more flexible; presbyopiaarrow_forward
- What function do the malleus, incus, and stapes bones in the inner ear play in processing sounds? A. The bones transform pressure waves into nerve impulses that the brain recognizes as sound. B. The bones equalize pressure between the middle ear and the atmosphere. C. The bones transmit vibrations to the oval window setting the fluid in the cochlea in motion. D. The bones depolarize or hyperpolarize hair cells depending on the direction they vibrate.arrow_forwardThe cochlea is________ A. involved in the maintenance of body temperature. B. part of the organ of Corti. C. a fluid-filled canal. D. a coiled structure found in the inner ear.arrow_forwardwhich statements are true about the Auditory Structures and their Functions a. The middle ear is connected to the mastoid air cells. b. The inner ear has three parts: the semicircular canals; the vestibule, which contains the utricle and the saccule; and the cochlea. c. The cochlea is a circular-shaped canal within the temporal bone. d. The cochlea is divided into two compartments by the vestibular and basilar membranes. The scala vestibuli and scala tympani contain perilymph. The cochlear duct contains endolymph and the spiral organ (organ of Corti).arrow_forward
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