Question 1

What structures contain the receptors that detect motion of the head?

Accepted Answer

A)   Utricle and saccule
B)   Semicircular ducts
C)   Scala vestibuli and scala tympani
D)   Anterior and posterior chambersE) B) and C)
F) All of the above

Question 2

The cones in the retina contain photopigmentsthat are sensitive to what wavelengths (colors)  of visible light?

Accepted Answer

A)   Red, green, and blue
B)   Red, blue, and yellow
C)   Green, yellow, and purple
D)   Red, yellow, and greenE) All of the above
F) B) and C)

Question 3

The auditory tube connects the inner ear to the nasopharynx and functions to equalize air pressure.

Accepted Answer

A) True 
 B)False

Question 4

Blood vessels pass through the optic disc of the eye.

Accepted Answer

A) True 
 B)False

Question 5

In what situation would the lens of the eye thicken?

Accepted Answer

A)   When the suspensory ligaments pull on the lens capsule
B)   When the ciliary processes relax
C)   When the ciliary muscles relax
D)   When the ciliary muscles contractE) C) and D)
F) B) and D)

Question 6

Name the watery secretion that is continually manufactured, nourishes the lens and cornea, and maintains the shape of the front of the eye.

Accepted Answer

A)   Vitreous humor
B)   Endolymph
C)   Aqueous humor
D)   Lacrimal fluidE) A) and B)
F) A) and C)

Question 7

What region of the retina provides the sharpest vision?

Accepted Answer

A)   Fovea centralis
B)   Optic disc
C)   Conjunctiva
D)   Ciliary bodyE) None of the above
F) A) and C)

Question 8

The condition called anosmia is a loss of the sense of __________.

Accepted Answer

A)   touch
B)   smell
C)   hearing
D)   visionE) A) and D)
F) None of the above

Question 9

Auditory ossicles amplify vibrations as they move from the outer ear to the inner ear.

Accepted Answer

A) True 
 B)False

Question 10

What is a characteristic of taste receptors?

Accepted Answer

A)   They are found only on the tongue.
B)   If damaged, they are not replaced.
C)   They are nerve cells.
D)   They are modified epithelial cells.E) A) and B)
F) A) and C)

Question 11

What is the typical cause of nightblindness?

Accepted Answer

A)   Damage to the cornea
B)   Loss of photoreceptors in retina
C)   Deficiency in vitamin A
D)   Toxicity due to excess vitamin AE) B) and D)
F) All of the above

Question 12

What bacteriocidal enzyme is contained in tears?

Accepted Answer

A)   Ribozyme
B)   Lysozyme
C)   Enterozyme
D)   Hydrochloric acidE) A) and B)
F) A) and C)

Question 13

Pain sensations arising from visceral organs may be caused by the stretching of tissues.

Accepted Answer

A) True 
 B)False

Question 14

Treatment for a cataract involves removal of the __________ and replacement with an artificial one.

Accepted Answer

A)   cornea
B)   lens
C)   vitreous humor
D)   retinaE) C) and D)
F) B) and D)

Question 15

Sympathetic nerve fibers stimulate contraction of which of the muscle fibers of the iris?

Accepted Answer

A)   Muscle fibersof the circular group
B)   Muscle fibers of the radial groupC) A) and B)
D) undefined

Question 16

What photopigment is found in the rods of the retina?

Accepted Answer

A)   Erythrolabe
B)   Rhodopsin
C)   Cyanolabe
D)   Visual blueE) A) and D)
F) None of the above

Question 17

The utricle and saccule contain the sensory receptors associated primarily with the sense of dynamic equilibrium.

Accepted Answer

A) True 
 B)False

Question 18

Meissner's and Pacinian corpuscles are examples of receptors for __________.

Accepted Answer

A)   touch and pressure
B)   pain
C)   temperature
D)   static equilibriumE) B) and C)
F) All of the above

Question 19

What is the order of structures through which light passes as it travels to the retina?

Accepted Answer

A)   Cornea, aqueous humor, lens, vitreous humor
B)   Aqueous humor, cornea, lens, vitreous humor
C)   Vitreous humor, lens, aqueous humor, cornea
D)   Cornea, lens, aqueous humor, vitreous humor
E)   Aqueous humor, vitreous humor, cornea, lensF) B) and D)
G) All of the above

Question 20

Muscle spindles and Golgi tendon organs are examples of what class of receptor?

Accepted Answer

A)   Proprioceptors
B)   Thermoreceptors
C)   Photoreceptors
D)   ChemoreceptorsE) A) and D)
F) A) and B)

Exam 10: The Senses

Pain sensations arising from visceral organs may be caused by the stretching of tissues.

Correct AnswerverifiedShow Answer

The cones in the retina contain photopigmentsthat are sensitive to what wavelengths (colors) of visible light?

Correct AnswerverifiedShow Answer

Sympathetic nerve fibers stimulate contraction of which of the muscle fibers of the iris?

Correct AnswerverifiedShow Answer

Blood vessels pass through the optic disc of the eye.

Correct AnswerverifiedShow Answer

What is a characteristic of taste receptors?

Correct AnswerverifiedShow Answer

What is the typical cause of nightblindness?

Correct AnswerverifiedShow Answer

In what situation would the lens of the eye thicken?

Correct AnswerverifiedShow Answer

Auditory ossicles amplify vibrations as they move from the outer ear to the inner ear.

Correct AnswerverifiedShow Answer

What structures contain the receptors that detect motion of the head?

Correct AnswerverifiedShow Answer

Name the watery secretion that is continually manufactured, nourishes the lens and cornea, and maintains the shape of the front of the eye.

Correct AnswerverifiedShow Answer

Meissner's and Pacinian corpuscles are examples of receptors for __________.

Correct AnswerverifiedShow Answer

What region of the retina provides the sharpest vision?

Correct AnswerverifiedShow Answer

What is the order of structures through which light passes as it travels to the retina?

Correct AnswerverifiedShow Answer

Muscle spindles and Golgi tendon organs are examples of what class of receptor?

Correct AnswerverifiedShow Answer

What photopigment is found in the rods of the retina?

Correct AnswerverifiedShow Answer

Treatment for a cataract involves removal of the __________ and replacement with an artificial one.

Correct AnswerverifiedShow Answer

What bacteriocidal enzyme is contained in tears?

Correct AnswerverifiedShow Answer

The utricle and saccule contain the sensory receptors associated primarily with the sense of dynamic equilibrium.

Correct AnswerverifiedShow Answer

The auditory tube connects the inner ear to the nasopharynx and functions to equalize air pressure.

Correct AnswerverifiedShow Answer

The condition called anosmia is a loss of the sense of __________.

Correct AnswerverifiedShow Answer

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