end of chapter quiz: chapter 12 Flashcards
What do the receptors in the skin for light touch and the receptors in the nose for smell have in common?
a. They both respond to pressure.
b. They both respond to chemicals.
c. They send action potentials to the same area of the brain.
d. They both adapt very quickly.
d
Which of the following are NOT found among the somatosensory receptors?
a. mechanoreceptors
b. thermoreceptors
c. chemoreceptors
d. pain receptors
c
Which sentence is false regarding mechanoreceptors?
a. Action potential is produced by deformation of membrane cells.
b. They are found in the semicircular canals.
c. Pancinian corpuscles respond to deep pressure.
d. All receptors have encapsulated dendritic endings.
d
Receptor adaptation results when:
a. sensory neurons stop sending action potentials
b. a stimulus is discontinued
c. action potentials from different neurons cancel one another out
d. the action potentials do not reach the brain
a
In what order do the structures of the ear come into play when hearing?
a. auditory canal—cochlea—tympanic membrane—cochlear nerve—malleus
b. auditory canal—tympanic membrane—malleus—cochlea— cochlear nerve
c. auditory tube—malleus—cochlea—incus—cochlear nerve
d. malleus—tympanic membrane—cochlea—stapes—cochlear nerve
d
Different pitched sounds will result in stimulation of receptors located in different regions of:
a. hair cells
b. round and oval windows
c. the vestibular apparatus
d. the cochlea
d
Which of the following correctly traces the path of light through the eye?
a. aqueous humor—pupil—cornea—lens—vitreous humor— retina
b. cornea—aqueous humor—pupil—lens—vitreous humor— retina
c. cornea—vitreous humor—lens—pupil—aqueous humor— retina
d. pupil—cornea—vitreous humor—lens—aqueous humor— retina
b
Which of the following features do the cochlea and the semicircular canals not have in common?
a. located in the inner ear
b. filled with fluid
c. stimulated by waves
d. receptors are hair cells
c
Which of the following will regulate the amount of light entering the eye?
a. cornea
b. lens
c. iris
d. retina
c
Which of the following receptors are not “silent”?
a. pain receptors
b. rods and cones
c. mechanoreceptors
d. chemoreceptors
b
Which of the following correctly describes the distribution of rods and cones in the retina?
a. Rods and cones are evenly distributed throughout the retina.
b. There are more cones on the periphery of the retina.
c. Cones are more highly concentrated in the fovea centralis.
d. Rods are more highly concentrated in the optic disk.
c
Which of the following statements explains why vision is less sharp in dim light than in bright light?
a. Cones are more responsive in dim light.
b. There are more rods than cones in the eye.
c. Many rods converge on a single ganglion.
d. The dilated pupil lets in more light than the lens can focus
c
Conduction deafness would most likely be caused by damage to the:
a. cochlear nerve
b. malleus, incus, and/or stapes
c. hair cells in the cochlea
d. vestibular apparatus
b
The bipolar cells in the retina ________ the light stimulus.
a. receives
b. processes and integrates
c. transmits
d. perceives
b
Myopia and hyperopia are consequences of an abnormally shaped ________.
a. lens
b. cornea
c. macula
d. eyeball
d
