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The ________________________ is a membrane ion channel on sensory neurons that responds to cold in the 8ΒΊ to 28ΒΊC range by producing a depolarization.


A) capsaicin receptor
B) two-point threshold
C) cold or menthol receptor
D) pacinian corpuscle

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Match the type of receptor with the stimulus that would activate it.

Premises
burning your mouth
smell of pizza
seeing an old friend
a refreshing cold drink
a pat on the back
Responses
thermoreceptors
photoreceptors
nociceptors
chemoreceptors
mechanoreceptors

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burning your mouth
smell of pizza
seeing an old friend
a refreshing cold drink
a pat on the back

The opening of Na+/Ca2+ channels by cAMP produces a graded depolarization in the olfactory bulb.

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Chemoreceptors that respond to chemical changes in the external environment are called


A) interoceptors.
B) nociceptors.
C) proprioceptors.
D) exteroceptors.

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The wavelengths of light a photoreceptor responds to is determined by the opsin in the photoreceptor.

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What area of the retina has no photoreceptors?


A) fovea centralis
B) macula
C) optic disc
D) None of the choices is correct.

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Age-related hearing impairment is known as


A) presbycusis.
B) presbyopia.
C) conduction deafness.
D) otosclerosis.

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Sensations are sharpened via


A) two-point discrimination.
B) adaptation.
C) lateral inhibition.
D) phantom limb.

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Basal stem cells in the olfactory epithelium produce new olfactory receptors every one to two months.

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Which of the following is a special sense?


A) touch
B) vision
C) pain
D) All of the choices are correct.

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Long term blockage of the canal of Schlemm can induce


A) glaucomA.
B) cataracts.
C) macular degeneration.
D) detached retina.

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The outermost layer of the eyeball is the


A) choroid.
B) retina.
C) sclera.
D) lens.

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The cupula is part of the


A) semicircular canals.
B) utricle.
C) saccule.
D) cochlea.

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_____________ receptors undergo slow adaptation.


A) Tonic
B) Phasic

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Which of the following is NOT part of the organ of Corti?


A) vestibular membrane
B) tectorial membrane
C) basilar membrane
D) hair cells with sensory fibers

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Which of the following are NOT types of tongue papillae?


A) foliate papillae
B) circumvallate papillae
C) glossoform papillae
D) fungiform papillae

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Which of the following is NOT a type of cone?


A) red
B) blue
C) yellow
D) green

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