EBK HUMAN ANATOMY
9th Edition
ISBN: 9780134424828
Author: Nath
Publisher: YUZU
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Chapter 18, Problem 2RC
Summary Introduction
Introduction:
The two small muscles found in the tympanic cavity are tensor tympani and stapedius. The tensor tympani originate from the temporal bone and inserts on the malleus handle. The stapedius mainly originates from the tympanic cavity’s posterior wall and inserts onto the stapes.
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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.
(a) choose one part of the auditory conductive mechanism--the outer ear or middle ear--and describe how sound is transduced (changed from acoustic energy to mechanical energy) through that part of the auditory system, and
(b) comment on how the anatomy of that part of the ear enables normal auditory conductive physiology.
The transduction of sound waves into action potentials occurs(A) in the tectorial membrane as it is stimulated by hair cells.(B) when hair cells are bent against the tectorial membrane,causing them to depolarize and release neurotransmitterthat stimulates sensory neurons.(C) as the basilar membrane vibrates at different frequenciesin response to the varying volume of sounds.(D) within the middle ear as the vibrations are amplified by themalleus, incus, and stapes
Chapter 18 Solutions
EBK HUMAN ANATOMY
Ch. 18 - Using the diagram, fill in the blanks below with...Ch. 18 - 2. A receptor that is especially common in the...Ch. 18 - Fine touch and pressure receptors provide detailed...Ch. 18 - Receptors in the saccule and utricle provide...Ch. 18 - 5. Deep to the subcutaneous layer, the eyelids are...Ch. 18 - Prob. 6RFTCh. 18 - Prob. 7RFTCh. 18 - Mechanoreceptors that detect pressure changes in...Ch. 18 - Prob. 9RFTCh. 18 - Auditory information about the frequency and...
Ch. 18 - Fill in the blanks below with the proper...Ch. 18 - Prob. 1RCCh. 18 - Prob. 2RCCh. 18 - 3. A person salivates when anticipating eating a...Ch. 18 - Prob. 4RCCh. 18 - 5. What could stimulate the release of an...Ch. 18 - Prob. 6RCCh. 18 - Prob. 7RCCh. 18 - Prob. 8RCCh. 18 - Prob. 9RCCh. 18 - Prob. 10RCCh. 18 - 1. Beth has surgery to remove some polyps...Ch. 18 - 2. Jared is 10 months old, and his pediatrician...Ch. 18 - Prob. 3CT
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- Conduction of sound from the middle ear to the internal ear occurs via vibration of the (a) malleus against the tympanic membrane, (b) stapes in the oval window, (c) incus in the round window, (d) tympanic membrane against the stapes.arrow_forwardThe transmission of sound vibrations through the internal ear occurs chiefly through (a) nerve fibers, (b) air, (c) fluid, (d) bone.arrow_forwardWhich of the following is not part of the auditory ossicles in the middle ear? a) No answer text provided. b) incus (the city) c) malleus (hammaren) d) stapedius (the step)arrow_forward
- The malleus, incus, and stapes are the tiny ear bones located in the, (a) external ear. (b) middle ear. (c) internal ear. (d) membranous labyrinth.arrow_forwardRegarding 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 cochleaarrow_forwarda) choose one part of the auditory sensorineural mechanism--the inner ear or retrocochlear auditory pathway--and describe how sound is transduced through that part of the auditory system, and (b) comment on how the anatomy of that part of the ear enables normal auditory sensorineural physiology.arrow_forward
- (c) Describe how auditory sensory information is converted to an electrical signal in the [9] ear.arrow_forwardWhich of the following statements concerning the inner ear is TRUE? Question 3 options: a) The bony labyrinth within the tempoal bone contains spaces for the semicircular canals and the cochlea. b) The fibers of the cochlear nerve are attached to hair cells in the semicircular canals to carry information about movements of the head. c) The frequency of sound waves as defined by their wavelengths are perceived as pitch and are measured in decibels (dB). d) The saccule and utricle are critical sensory receptors for interpreting language, distinct from other sounds.arrow_forward1) The maculae of the utricle and saccule with their embedded otoliths and the semicircular canals _______. A) detect changes in the rate at which the head is moving B) determine what direction a sounds are coming from C) amplify soft sounds to improve hearing D) can only detect motion if the head moves at a constant velocityarrow_forward
- In the process of hearing, the basilar membrane vibrates. Which event occurs next? (a) tympanic membrane vibrates (b) bones in middle ear amplify and conduct vibrations (c) cochlear nerve transmits impulses to organ of Corti(d) hair cells in organ of Corti are stimulated (e) vibrations are conducted to chemoreceptorsarrow_forwardPeople who are deaf due to cochlear damage may stillsuffer from motion sickness. Why?arrow_forwardMatch the ear area with the associated structure.(1) outer ear(2) middle ear(3) inner earA. cochleaB. eardrumC. auditory ossiclesarrow_forward
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