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Chapter 36: Q. 22 (page 1046)
A person catching a ball must coordinate her head and eyes. What part of the brain is helping to do this? a. hypothalamus b. pineal gland c. thalamus d. superior colliculus
The correct option is d.
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How does the structure of the ear allow a person to determine where a sound originates?
How could the pineal gland, the brain structure that plays a role in annual cycles, use visual information from the suprachiasmatic nucleus of the hypothalamus?
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? a. Hearing loss resulting from absence or loss of hair cells in the organ of Corti. b. Hearing loss resulting from an abnormal auditory nerve. c. Hearing loss resulting from fracture of the cochlea. d. Hearing loss resulting from damage to bones of the middle ear.
How would a rise in altitude likely affect the speed of a sound transmitted through air? Why?
Auditory hair cells are indirectly anchored to the _____. a. basilar membrane b. oval window c. tectorial membrane d. ossicles
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