Question 1

Match the structure associated with the eye with the appropriate description.
-Bulbar conjunctiva

Accepted Answer

A)  The angle where the eyelids join
B)  The space between the two eyelids
C)  Another name for the eyelids
D)  The membrane that covers the inner surface of the eyelids
E)  The membrane that covers the anterior sclera of the eyeF) D) and E)
G) B) and C)

Question 2

The outermost tunic of the eyeball is the ________.

Accepted Answer

A)   iris
B)   sclera
C)   retina
D)   choroid
E)   conjunctivaF) B) and E)
G) C) and E)

Question 3

Color vision

Accepted Answer

A)   is a function of cone cells.
B)   is most acute in dim light.
C)   is interpreted in the cerebellum.
D)   depends on the amount of available rhodopsin.
E)   is the interaction between rods and cones.F) A) and B)
G) C) and D)

Question 4

Sara is color blind. Her classmates don't believe her and say that color blindness can only occur in males. Which of the following would explain Sara's inheritance of color blindness best to her classmates?

Accepted Answer

A)   Sara is homozygous recessive for color blindness, inheriting the mutant alleles from her father and her mother.
B)   Sara is heterozygous for color blindness, inheriting one mutant copy of the gene from her father.
C)   Sara is color blind because she inherited a recessive allele from her mother and a normal allele from her father.D) A) and B)
E) None of the above

Question 5

Which of the following does not contribute to the sense of equilibrium?

Accepted Answer

A)   Otolithic membrane
B)   Semicircular canals
C)   Saccule
D)   Utricle
E)   Vallate papillaeF) B) and E)
G) A) and D)

Question 6

Identify the structures that receive axons from the vestibular nucleus of medulla. (Check all that apply.)

Accepted Answer

A)   Cerebellum
B)   Extrinsic eye muscles
C)   Semicircular canals
D)   ThalamusE) All of the above
F) B) and C)

Question 7

Ricky's lenses are very round and his pupils are constricted. Ricky is most likely

Accepted Answer

A)   reading a book.
B)   watching a movie at the theater.
C)   watching an eagle fly.
D)   reading slides in a lecture hall from the back of the audience.E) C) and D)
F) B) and D)

Question 8

Which of the following special senses is relayed directly to the cerebral cortex without going to the thalamus?

Accepted Answer

A)   Olfaction
B)   Taste
C)   Vision
D)   Hearing
E)   TouchF) C) and D)
G) A) and D)

Question 9

To which of the following substances would the taste buds be most sensitive?

Accepted Answer

A)   Syrup
B)   Vinegar
C)   Salt water
D)   Quinine (tonic)  water
E)   JellyF) All of the above
G) B) and D)

Question 10

Damage to the glossopharyngeal nerve will result is complete loss of the sense of taste.

Accepted Answer

A) True 
 B)False

Question 11

The optic disc

Accepted Answer

A)   is located in the vascular tunic.
B)   is the site of greatest visual acuity.
C)   is also called the macula lutea.
D)   is on the anterior surface of the eye.
E)   contains no photoreceptor cells.F) A) and B)
G) A) and D)

Question 12

Damage to the vestibular branch of the vestibulocochlear nerve would result in loss of ________.

Accepted Answer

A)   taste
B)   sight
C)   hearing
D)   balance
E)   smellF) B) and E)
G) A) and D)

Question 13

Match the term associated with vision with the appropriate description.
-Optic chiasma

Accepted Answer

A)  The area that can be seen with the eyes open
B)  Opening in the orbit through which the optic nerve passes
C)  The cerebral area that integrates messages from retina
D)  Area where medial ganglion cell axons cross over
E)  The route of the ganglionic axons beyond the chiasmaF) A) and E)
G) B) and D)

Question 14

The utricle and saccule are involved in

Accepted Answer

A)   static balance.
B)   kinetic balance.
C)   hearing low intensity sounds.
D)   hearing high intensity sounds.
E)   evaluating movements of the head.F) None of the above
G) A) and B)

Question 15

Match the structure of the eye with the appropriate description.
-Retina

Accepted Answer

A)  Photoreceptor cells that function in black and white vision
B)  Photoreceptor cells that function in color vision
C)  The opening in the iris
D)  The innermost tunic of the eye
E)  A pigmented contractile structureF) A) and D)
G) A) and C)

Question 16

Match the structure of the eye with the appropriate description.
-Iris

Accepted Answer

A)  Photoreceptor cells that function in black and white vision
B)  Photoreceptor cells that function in color vision
C)  The opening in the iris
D)  The innermost tunic of the eye
E)  A pigmented contractile structureF) C) and E)
G) B) and D)

Question 17

The main factor affecting depth of focus is ________.

Accepted Answer

A)   convergence
B)   accommodation
C)   the shape of the lens
D)   the size of the lens
E)   the size of the pupilF) A) and B)
G) A) and C)

Question 18

When you try to focus on the tip of your nose,

Accepted Answer

A)   the pupils dilate.
B)   the ciliary muscles relax.
C)   the lens becomes more spherical.
D)   the tension on the suspensory ligament increases.
E)   the lens becomes flatter.F) B) and D)
G) C) and E)

Question 19

Vitreous humor

Accepted Answer

A)   is produced on a daily basis.
B)   is less viscous than aqueous humor.
C)   does not contribute to intraocular pressure.
D)   helps to hold the lens and retina in place.
E)   is located in the anterior chamber.F) A) and D)
G) A) and E)

Question 20

Which of the following correctly differentiates endolymph and perilymph? (Check all that apply.)

Accepted Answer

A)   Endolymph has a high concentration of K+ and a low concentration of Na+ compared to perilymph.
B)   Endolymph has a low concentration of K+ and a high concentration of Na+ compared to perilymph.
C)   Endolymph is between the membranous labyrinth and the bony labyrinth, and perilymph is within the membranous labyrinth.
D)   Endolymph is within the membranous labyrinth, and perilymph is between the membranous labyrinth and the bony labyrinth.E) All of the above
F) B) and C)

Exam 15: The Special Senses

Damage to the glossopharyngeal nerve will result is complete loss of the sense of taste.

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Ricky's lenses are very round and his pupils are constricted. Ricky is most likely

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Match the structure associated with the eye with the appropriate description. -Bulbar conjunctiva

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Match the structure of the eye with the appropriate description. -Retina

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When you try to focus on the tip of your nose,

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Which of the following does not contribute to the sense of equilibrium?

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To which of the following substances would the taste buds be most sensitive?

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Vitreous humor

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Match the structure of the eye with the appropriate description. -Iris

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Match the term associated with vision with the appropriate description. -Optic chiasma

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Sara is color blind. Her classmates don't believe her and say that color blindness can only occur in males. Which of the following would explain Sara's inheritance of color blindness best to her classmates?

Correct AnswerverifiedShow Answer

Identify the structures that receive axons from the vestibular nucleus of medulla. (Check all that apply.)

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The utricle and saccule are involved in

Correct AnswerverifiedShow Answer

The outermost tunic of the eyeball is the ________.

Correct AnswerverifiedShow Answer

Which of the following special senses is relayed directly to the cerebral cortex without going to the thalamus?

Correct AnswerverifiedShow Answer

Which of the following correctly differentiates endolymph and perilymph? (Check all that apply.)

Correct AnswerverifiedShow Answer

Color vision

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The optic disc

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The main factor affecting depth of focus is ________.

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Damage to the vestibular branch of the vestibulocochlear nerve would result in loss of ________.

Correct AnswerverifiedShow Answer

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