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| 1 | |
Unencapsulated, terminal branches of dendrites are called |
| | A) | lamellated corpuscles. |
| | B) | free nerve endings. |
| | C) | organs of Ruffini. |
| | D) | Krause bulbs. |
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| 2 | |
Baroreceptors are a class of mechanoreceptor that respond to |
| | A) | light touch. |
| | B) | pain stimuli. |
| | C) | increase in muscle tension. |
| | D) | changes in pressure. |
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| 3 | |
Which sensory structure has stereocilia of hair cells embedded in a gelatinous structure called a cupula? |
| | A) | semicircular duct |
| | B) | saccule |
| | C) | cochlear duct |
| | D) | utricle |
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| 4 | |
The photoreceptors that perceive color and sharp vision are |
| | A) | amacrine cells. |
| | B) | rods. |
| | C) | horizontal cells. |
| | D) | cones. |
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| 5 | |
The tarsal glands secrete |
| | A) | a high-salt fluid to prevent endolymph from becoming perilymph. |
| | B) | a low-protein product into the aqueous humor. |
| | C) | a lipid-rich product that prevents the eyelids from sticking together. |
| | D) | a mucus-rich product that maintains olfactory cilia moistness. |
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| 6 | |
The arrangement of tunics in the eye, from the center of the eye to the periphery, is |
| | A) | neural, vascular, fibrous. |
| | B) | vascular, neural, fibrous. |
| | C) | vascular, fibrous, neural. |
| | D) | neural, fibrous, vascular. |
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| 7 | |
Receptors in the walls of blood vessels that respond to discrete changes in gas concentration in the blood are called |
| | A) | gustatory receptors. |
| | B) | chemoreceptors. |
| | C) | thermoreceptors. |
| | D) | nociceptors. |
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| 8 | |
The only sensations to reach the cerebral cortex without first processing through the synapses in the thalamus are |
| | A) | pain. |
| | B) | olfaction. |
| | C) | proprioception. |
| | D) | touch. |
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| 9 | |
The lacrimal glands produce tears for each of the following functions except |
| | A) | cleansing the eye surface. |
| | B) | preventing bacterial infection. |
| | C) | humidifying the eye orbit. |
| | D) | moistening the eye surface. |
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| 10 | |
Which statement is true about the scala media (cochlear duct)? |
| | A) | It is part of the bony labyrinth. |
| | B) | It is filled with perilymph. |
| | C) | It contains hair cells that convert sound waves into nerve impulses. |
| | D) | It contains a spiral organ that rests on a vestibular membrane. |
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