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| 1 | |
Sensory receptors that are stimulated by changes in temperature are called _________. The category of sensory receptors that would respond to excessive temperature and extensive mechanical pressure are called __________. |
| | A) | chemoreceptors; pain receptors |
| | B) | thermoreceptors; mechanoreceptors |
| | C) | chemoreceptors; electromagnetic receptors |
| | D) | thermoreceptors; pain receptors |
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| 2 | |
Mechanoreceptors are found in human |
| | A) | mechanoreceptors are found in all of these places in the human body. |
| | B) | arteries. |
| | C) | lungs. |
| | D) | ears. |
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| 3 | |
Sensation, or the conscious detection of stimuli, occurs once nerve impulses arrive at the |
| | A) | amygdala. |
| | B) | thalamus. |
| | C) | reticular activating system. |
| | D) | cerebral cortex. |
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| 4 | |
In taste buds, __________ bear receptor proteins for certain molecules; when molecules bind to these receptor proteins, nerve impulses are generated in associated sensory nerve fibers that are interpreted in the brain as tastes. |
| | A) | thermoreceptors |
| | B) | microvilli |
| | C) | taste pores |
| | D) | papillae |
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| 5 | |
The sense of smell is dependent on |
| | A) | optic cells. |
| | B) | auditory cells. |
| | C) | olfactory cells. |
| | D) | odiferous cells. |
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| 6 | |
The eye has three layers; from innermost to outermost they are: |
| | A) | the choroid, the retina, and the sclera |
| | B) | the retina, the sclera, and the choroid |
| | C) | the sclera, the choroid, and the retina |
| | D) | the retina, the choroid, and the sclera |
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| 7 | |
The choroid |
| | A) | transmits impulses to the brain. |
| | B) | absorbs all light rays. |
| | C) | refracts light rays. |
| | D) | absorbs stray light rays that photoreceptors in the retina did not absorb. |
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| 8 | |
In the front of the eye, the sclera becomes the cornea, which |
| | A) | allows light to pass to other parts of the eye in addition to helping to focus light rays. |
| | B) | lines the inside of the eyelids. |
| | C) | regulates the size of the pupil. |
| | D) | regulates the amount of light entering the eye. |
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| 9 | |
Toward the front of the eye, the choroid becomes the iris, which |
| | A) | allows light to pass to other parts of the eye in addition to helping to focus light rays. |
| | B) | lines the inside of the eyelids. |
| | C) | regulates the size of the pupil. |
| | D) | regulates the amount of light entering the eye. |
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| 10 | |
The eye focuses on near and far objects based on the contracting and relaxing of the _________, which control the shape of the lens. |
| | A) | pupil |
| | B) | ciliary muscles behind the iris |
| | C) | conjunctiva |
| | D) | optic nerve |
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| 11 | |
The rods and cones are photoreceptors that are found in the __________. The __________ require bright light and give us the ability to distinguish colors; we see shades of gray in the dark because the __________ are sensitive to light but do not see color. |
| | A) | lens; cones; rods |
| | B) | sclera; rods; cones |
| | C) | retina; rods; cones |
| | D) | retina; cones; rods |
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| 12 | |
The retina lies interior to the choroid and has several neuron layers. The closest to the choroid is the __________, followed by the __________, and the __________. |
| | A) | rod and cone cell layer; bipolar cell layer; ganglion cell layer |
| | B) | rod and cone cell layer; ganglion cell layer; bipolar cell layer |
| | C) | ganglion cell layer; bipolar cell layer; rod and cone cell layer |
| | D) | bipolar cell layer; rod and cone cell layer; ganglion cell layer |
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| 13 | |
When the cornea or lens is uneven and light rays cannot be evenly focused on the retina causing a fuzzy image to form, a person is said to |
| | A) | be nearsighted. |
| | B) | be farsighted. |
| | C) | have cataracts. |
| | D) | have astigmatism. |
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| 14 | |
The ear has three regions: the __________ ear is filled with fluid and contains structures specialized for balance and hearing; the __________ ear functions to gather sound waves; and the __________ functions to amplify sound waves. |
| | A) | outer; inner; middle |
| | B) | inner; outer; middle |
| | C) | inner; middle; outer |
| | D) | outer; middle; inner |
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| 15 | |
A difference in low pitch and high pitch sounds is detected by the ear because of |
| | A) | the intensity of the stimulus. |
| | B) | the region of the basilar membrane that is vibrated. |
| | C) | amplitude of sound waves. |
| | D) | the angle at which a sound hits the tympanic membrane. |
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| 16 | |
Which inner ear structure functions in hearing? |
| | A) | the vestibule |
| | B) | the semicircular canals |
| | C) | the cochlea |
| | D) | the tympanic membrane |
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| 17 | |
Once sound waves have passed the tympanic membrane, what is the rest of their path to being converted into nerve signals? |
| | A) | fluid of cochlear canals → Organ of Corti → stereocilia → cochlear nerve |
| | B) | oval window → Organ of Corti → cochlear nerve |
| | C) | malleus → stapes → oval window → Organ of Corti → cochlear nerve |
| | D) | malleus → incus → stapes → oval window → fluid of cochlear canals → Organ of Corti → stereocilia → cochlear nerve |
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| 18 | |
Mechanoreceptors for hearing and balance are found in the inner ear. __________ balance is detected in three semicircular canals based upon movement of fluid in the __________ of the canals, the movement of which bends stereocilia. |
| | A) | Rotational; ampulla |
| | B) | Gravitational; otoliths |
| | C) | Rotational; otoliths |
| | D) | Gravitational; ampulla |
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| 19 | |
__________ balance relies on receptors in the utricle and saccule of the inner ear. These membranous sacs both contain hair cells with stereocilia embedded in an otolithic membrane. The utricle responds to __________ movements; the responds best to __________ movements. |
| | A) | rotational; horizontal; vertical |
| | B) | gravitational; vertical; horizontal |
| | C) | rotational; vertical; horizontal |
| | D) | gravitational; horizontal; vertical |
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| 20 | |
Muscle tone, balance, and posture are maintained as a result of ___________, which tell the position of the body in space. The sense of touch is perceived because of __________ receptors in the __________ of the skin. |
| | A) | cutaneous; proprioceptors; dermis |
| | B) | cutaneous; proprioceptors; epidermis |
| | C) | proprioceptors; cutaneous; dermis |
| | D) | proprioceptors; cutaneous; epidermis |
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