Question 1

Sensations are sharpened via

Accepted Answer

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

Question 2

Proprioceptors allow for individuals to determine the position of a limb or body part.

Accepted Answer

A) True 
 B)False

Question 3

The hertz is a measure of

Accepted Answer

A)  distance.
B)  frequency.
C)  duration.
D)  intensity.

Question 4

What role do outer hair cells play in the transmission of sound?

Accepted Answer

A)  They dampen strong vibrations from very loud sounds.
B)  They bend and depolarize with specific wavelengths of sound waves.
C)  They amplify softer sound and sharpen pitch perception.
D)  All apply.

Question 5

What color of light is best absorbed by rods?

Accepted Answer

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

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is a special sense?

Accepted Answer

A)  touch
B)  vision
C)  pain
D)  All apply.

Question 8

Phasic receptors adapt rapidly to maintained stimuli.

Accepted Answer

A) True 
 B)False

Question 9

What extracellular ion is necessary for release of neurotransmitter for salty and sour tastes?

Accepted Answer

A)  Mg2+
B)  K+
C)  Na+
D)  Ca2+

Question 10

What structure holds the lens in place?

Accepted Answer

A)  canal of Schlemm
B)  suspensory ligament
C)  choroid
D)  iris

Question 11

The capsaicin receptor produces both heat and pain sensations by allowing Ca2+ and Na+ to diffuse into the neuron through transient receptor potential channels.

Accepted Answer

A) True 
 B)False

Question 12

Only absorbed light can produce photochemical reactions that result in vision.

Accepted Answer

A) True 
 B)False

Question 13

______________ occurs when there is significant asymmetry of the cornea and/or lens.

Accepted Answer

A)  Myopia
B)  Hyperopia
C)  Astigmatism
D)  Presbyopia

Question 14

What causes the release of neurotransmitter when bitter taste has stimulated a taste cell?

Accepted Answer

A)  release of Ca2+ from endoplasmic reticulum
B)  opening of extracellular Ca2+ channels
C)  closing K+ channels
D)  closing Na+ channels

Question 15

Which of the following is NOT a cutaneous receptor?

Accepted Answer

A)  muscle spindle
B)  touch receptor
C)  heat receptor
D)  pain receptor

Question 16

Which of the special senses is most closely linked with the limbic system?

Accepted Answer

A)  hearing
B)  olfaction
C)  taste
D)  vision

Question 17

What characteristic does the endolymph of the membranous labyrinth have that is unusual?

Accepted Answer

A)  It is similar to the perilymph that surrounds the membranous labyrinth.
B)  It has a higher than normal concentration of Na+.
C)  It has a lower than normal concentration of Cl-.
D)  It has a higher than normal concentration of K+.

Question 18

Where do the tracts carrying impulses of proprioception and pressure cross?

Accepted Answer

A)  in the spinal cord at the level the axons enter the cord
B)  in the medulla oblongata
C)  in the thalamus
D)  the axons do not cross

Question 19

_____________ receptors undergo slow adaptation.

Accepted Answer

A)  Tonic
B)  Phasic

Question 20

Where on the cerebral cortex is taste information sent?

Accepted Answer

A)  prefrontal cortex,postcentral gyrus,and insula
B)  temporal lobe,precentral gyrus,and prefrontal cortex
C)  thalamus,insula,and postcentral gyrus
D)  medulla oblongata,insula,and thalamus

Exam 10: Sensory Physiology

Sensations are sharpened via

Correct AnswerverifiedShow Answer

What structure holds the lens in place?

Correct AnswerverifiedShow Answer

______________ occurs when there is significant asymmetry of the cornea and/or lens.

Correct AnswerverifiedShow Answer

Where on the cerebral cortex is taste information sent?

Correct AnswerverifiedShow Answer

Which of the following is NOT a cutaneous receptor?

Correct AnswerverifiedShow Answer

Which of the following is a special sense?

Correct AnswerverifiedShow Answer

What causes the release of neurotransmitter when bitter taste has stimulated a taste cell?

Correct AnswerverifiedShow Answer

What extracellular ion is necessary for release of neurotransmitter for salty and sour tastes?

Correct AnswerverifiedShow Answer

What role do outer hair cells play in the transmission of sound?

Correct AnswerverifiedShow Answer

The hertz is a measure of

Correct AnswerverifiedShow Answer

Where do the tracts carrying impulses of proprioception and pressure cross?

Correct AnswerverifiedShow Answer

Proprioceptors allow for individuals to determine the position of a limb or body part.

Correct AnswerverifiedShow Answer

Which of the special senses is most closely linked with the limbic system?

Correct AnswerverifiedShow Answer

What characteristic does the endolymph of the membranous labyrinth have that is unusual?

Correct AnswerverifiedShow Answer

The capsaicin receptor produces both heat and pain sensations by allowing Ca2+ and Na+ to diffuse into the neuron through transient receptor potential channels.

Correct AnswerverifiedShow Answer

Only absorbed light can produce photochemical reactions that result in vision.

Correct AnswerverifiedShow Answer

Phasic receptors adapt rapidly to maintained stimuli.

Correct AnswerverifiedShow Answer

_____________ receptors undergo slow adaptation.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What color of light is best absorbed by rods?

Correct AnswerverifiedShow Answer

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The capsaicin receptor produces both heat and pain sensations by allowing Ca²⁺ and Na⁺ to diffuse into the neuron through transient receptor potential channels.

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