Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 38.5, Problem 3CC
Summary Introduction
To explain:
The disturbance on hearing, if the stapes become fused to the other middle ear bones or to the oval window.
Introduction:
Ossicles are the three bones present in the human body. They transmit the sound from the surrounding to the inner ear, the cochlea. The ossicles are the smallest bones present in the body of human and their absence constitute to loss of hearing.
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WHAT IF? If the stapes became fused to the othermiddle ear bones or to the oval window, how would thiscondition affect hearing? Explain.
(Bonus) Deafness and hearing loss are a widespread issue. According to WHO, currently more than 1.5 billion people
(nearly 20% of the global population) live with hearing loss. From what you learned about our auditory system, briefly
explain what would happen to hearing in each of the following scenarios.
(a) the tectorial membrane can't hold its position and is pushing onto the auditory hair cells constantly.
(b) the auditory hair cells near the base of the cochlea are damaged and dead.
(c) the endolymph potassium concentration is lower than normal.
(d) the perilymph potassium concentration is lower than normal.
(RINNE TEST)
If you could hear the sound from the mastoid process, but not the external auditory canal, what specifically would that indicate about your hearing?
Chapter 38 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 38.1 - Which division of the autonomic nervous system...Ch. 38.1 - Prob. 2CCCh. 38.2 - When you wave your right hand, what part of your...Ch. 38.2 - People who are inebriated have difficulty touching...Ch. 38.2 - WHAT IF? Two groups of individuals have CNS...Ch. 38.3 - Prob. 1CCCh. 38.3 - Prob. 2CCCh. 38.3 - WHAT IF? If a woman with a severed corpus callosum...Ch. 38.4 - Which one of the five categories of sensory...Ch. 38.4 - Prob. 2CC
Ch. 38.4 - WHAT IF? If you stimulated a sensory neuron of an...Ch. 38.5 - Prob. 1CCCh. 38.5 - Prob. 2CCCh. 38.5 - Prob. 3CCCh. 38.5 - Prob. 4CCCh. 38.6 - Contrast the light-detecting organs of planarians...Ch. 38.6 - Prob. 2CCCh. 38.6 - MAKE CONNECTIONS Compare the function of retinal...Ch. 38 - Patients with damage to Wernickes area have...Ch. 38 - The cerebral cortex does not play a major role in...Ch. 38 - The middle ear converts A. air pressure waves to...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - Prob. 6TYUCh. 38 - Prob. 7TYUCh. 38 - SCIENTIFIC INQUIRY Consider an individual who had...Ch. 38 - Prob. 9TYUCh. 38 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 38 - Prob. 11TYU
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- Figure 36.14 Cochlear implants can restore hearing in people who have a nonfunctional cochlea The implant consists of a microphone that picks up sound. A speech processor selects sounds in the range of human speech, and a transmitter converts these sounds to electrical impulses, which are then sent to the auditory nerve. Which of the following types of hearing loss would not be restored by a cochlear implant? Hearing loss resulting from absence or loss of hair cells in the organ of Corti. Hearing loss resulting from an abnormal auditory nerve. Hearing loss resulting from fracture of the cochlea. Hearing loss resulting from damage to bones of the middle ear.arrow_forwardHearing Ear Model Label the following structures on this diagram of the ear: external ear: auricle external acoustic meatus middle ear: tympanic membrane malleus incus internal ear: oval window cochlea semicircular canals bone CN VIII: vestibular branch cochlear branch auditory tube stapes round window temporal Now locate the EAR MODEL and identify these same structures.arrow_forward1.what factors might account for a difference in the acuity of the two ears? Explain. 2. Why is it impossible to taste substances with a dry tongue?arrow_forward
- (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.arrow_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_forwardExplain fully how sound is detected by your inner ear. Be sure to identify and explain the roles of: tympanic membrane, auditory ossicles, endolymph, basilar membrane, hair cells.arrow_forward
- In assessing elderly patients for their visual acuity; what are the common changes in their vision with regards to aging. List at least 5 of these changes. How to do you asses for the gross hearing of an infant patient, explain briefly.arrow_forwardFunction • To convert sound into electrochemical signal 1 • To maintain balance • To amplify sound • To equalize air pressure 2 • To enhance and focus sound waves 3 • To protect the ear from foreign materials Match the following ear structures with their functions numbered above. Number: Structure: Middle Ear Outer Ear Inner Eararrow_forwardMatch following structures with their functionsarrow_forward
- Match the function with the correct structure. 1. Structure that vibrates in response to the • Auditory canal movement of the ossicles and sends Oval window pressure waves to the round window + Auditory nerve 2. Hair cells that bend in response to Semicircular canals pressure waves and initiate nerve impulses to detect sound Cochlea Utricle and saccule 3. Receptors that detect gravitational equilibrium + Tympanum 4. Round elastic structure that vibrates in + Organ of Corti response to sound waves Eustachian tube 5. Bones that amplify sound waves Ossicles 6. Structure that resemble a snail and contains the organ of Corti 7. Receptors that detect rotational equilibrium 8. Sensory nerve conducting impulses to the temporal lobe of the cerebrum 9. Structure that collects sound waves and directs them to the eardrum 10. Structure that equalizes air pressure between the middle ear and the outside airarrow_forward.Which would be a bigger problem for a person’s ability to properly move the eyes: damage to the trochlear nerve or damage to the oculomotor nerve? Explain.arrow_forward1. What are the refractory structures of the eye? 2. What parts of the ear is responsible for equilibrium and balance? why? 3. Do taste receptor undergo adaptation? Why? 4. Which cranial nerves conduct taste sensation to the brain?arrow_forward
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