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| 1 | |
The most sensitive part of a taste bud is the |
| | A) | taste cell |
| | B) | taste pore |
| | C) | taste hair |
| | D) | taste cell membrane |
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| 2 | |
Saliva enhances the taste of food by |
| | A) | increasing the sensitivity of taste receptors |
| | B) | dissolving the chemicals that cause taste so they can be tasted |
| | C) | releasing taste factors by partially digesting food |
| | D) | capturing and dissolving the gases of odors of food |
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| 3 | |
Which of the following would produce the taste sensation of umami? |
| | A) | sugar |
| | B) | pretzels |
| | C) | a lemon |
| | D) | monosodium glutamate (MSG) |
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| 4 | |
The function of the small bones of the middle ear is to |
| | A) | provide a framework for the tympanic membrane |
| | B) | protect the structures of the inner ear |
| | C) | support the structure of the tympanic cavity |
| | D) | relay and amplify the vibrations and transmit them to the inner ear |
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| 5 | |
The ossicle that fits in the oval window is the |
| | A) | stapes |
| | B) | malleus |
| | C) | incus |
| | D) | incubus |
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| 6 | |
Hearing receptor cells are located on the |
| | A) | organ of Corti |
| | B) | scala vestibuli |
| | C) | scala tympani |
| | D) | round window |
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| 7 | |
Bending your head to look at the floor will stimulate receptors in the |
| | A) | ampulla |
| | B) | cupula |
| | C) | semicircular canals |
| | D) | maculae |
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| 8 | |
The structure that detects motion of the head is the |
| | A) | macula |
| | B) | semicircular canal |
| | C) | vestibule |
| | D) | utricle |
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| 9 | |
The sensory organ of the semicircular canals is the |
| | A) | crista ampullaris |
| | B) | macula |
| | C) | endolymph |
| | D) | cerebellum |
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| 10 | |
The muscle that raises the eyelid is the |
| | A) | orbicularis oculi |
| | B) | superior rectus |
| | C) | levator palpebrae superioris |
| | D) | ciliary muscle |
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| 11 | |
The superior rectus muscle causes the eye to rotate |
| | A) | upward and toward the midline |
| | B) | downward and toward the midline |
| | C) | upward and away from the midline |
| | D) | downward and away from the midline |
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| 12 | |
Which of the following is in the correct order? |
| | A) | lacrimal gland, sup. & inf. caniculi, lacrimal sac, nasolacrimal duct |
| | B) | sup. & inf. caniculi, lacrimal sac, nasolacrimal duct, lacrimal gland |
| | C) | lacrimal sac, sup. & inf. caniculi, lacrimal gland, nasolacrimal duct |
| | D) | lacrimal gland, nasolacrimal duct, lacrimal sac, sup. & inf caniculi |
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| 13 | |
The transparency of the cornea is due to |
| | A) | the nature of the cytoplasm in the cells of the cornea |
| | B) | the small number of cells and the lack of blood vessels |
| | C) | a lack of nuclei within the cells of the cornea |
| | D) | keratinization of cells in the cornea |
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| 14 | |
The shape of the lens changing as the eye focuses on a close object is a process known as |
| | A) | accommodation |
| | B) | refraction |
| | C) | reflection |
| | D) | strabismus |
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| 15 | |
The region of the retina associated with the sharpest vision is the |
| | A) | macula lutea |
| | B) | fovea centralis |
| | C) | optic disk |
| | D) | choroid coat |
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| 16 | |
The maintenance of the shape of the eyeball is enabled by the |
| | A) | sclera |
| | B) | middle layer |
| | C) | cornea |
| | D) | vitreous humor |
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| 17 | |
Which of the following pairs is not correct? |
| | A) | colorless vision - rods |
| | B) | fovea centralis - cones |
| | C) | cones - rhodopsin |
| | D) | sharp images - cones |
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| 18 | |
Projection is the process that allows us to determine where a stimulus has occurred. |
| | A) | True |
| | B) | False |
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| 19 | |
There are separate receptors for heat and cold. |
| | A) | True |
| | B) | False |
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| 20 | |
The brain is richly supplied with pain receptors. |
| | A) | True |
| | B) | False |
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| 21 | |
Pain arising in the heart may be felt in the left shoulder because the impulses from the skin and viscera may share common neural pathways. |
| | A) | True |
| | B) | False |
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| 22 | |
Serotonin participates in the suppression of pain impulses by stimulating the release of enkephalins. |
| | A) | True |
| | B) | False |
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| 23 | |
The cilia of olfactory receptor cells detect the gases that give rise to odors. |
| | A) | True |
| | B) | False |
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| 24 | |
The cilia respond to dissolved chemicals (liquids) for olfaction. |
| | A) | True |
| | B) | False |
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| 25 | |
The structures of the ear are responsible for the sense of balance or equilibrium as well as the sense of hearing. |
| | A) | True |
| | B) | False |
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| 26 | |
Axons in the right optic tract carry visual information from the right eye to the occipital lobe. |
| | A) | True |
| | B) | False |
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| 27 | |
Vibration of the ossicles produces movement of air within the inner ear. |
| | A) | True |
| | B) | False |
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| 28 | |
Sounds of different frequencies are detected because the hearing receptors in hair cells are sensitive to deformation by different sound frequencies. |
| | A) | True |
| | B) | False |
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| 29 | |
Hearing receptor cells are epithelial cells but function like neurons in that they are polarized. |
| | A) | True |
| | B) | False |
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| 30 | |
Hearing impulses are transmitted along the vestibular branch of the vestibulocochlear nerve to the auditory cortex of the temporal lobe. |
| | A) | True |
| | B) | False |
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