Multiple Choice

Question 1

The congenital condition of “crossed eyes” is also known as:

Answer 1

strabismus

Question 2

The aqueous humor of the eye is reabsorbed into the venous blood through the:

Answer 2

scleral venous sinus (canal of Schlemm)

Question 3

Which cranial nerve is responsible for moving the eye laterally?

Answer 3

Cranial nerve (abducens)

Question 4

The fading of a smell some time after you enter a room is an example of experiencing:

Answer 4

Sensory adaption

Question 5

The inability to see distant objects is termed “nearsighted” or:

Answer 5

myopia

Question 6

Which of the following extrinsic eye muscles is responsible for rotating the eye laterally?

Answer 6

Lateral rectus

Question 7

Treatment of a cataract usually involves removal of the:

Answer 7

Lens

Question 8

Taste receptors are:

Answer 8

Modified epithelial cells

Question 9

Visual pigments are derivatives of

Answer 9

rhodopsin

Question 10

The daily day/night cycle known as a circadian rhythm is established in the

Answer 10

hypothalamus

Question 11

The shape of the lens is controlled by the:

Answer 11

Suspensory ligaments

Question 12

The greatest visual acuity is found at the:

Answer 12

fovea centralis

Question 13

Taste buds are monitored by cranial nerves:

Answer 13

VII, IX, X

Question 14

When viewing an object close to you, your lens should be more:

Answer 14

convex

Question 15

What structure of the eye focuses light on the retina:

Answer 15

lens

Question 16

The middle coat of the eyeball that contains pigment which prevents light from scattering in the eyeball is the:

Answer 16

retina

Question 17

The three sets of color receptors within the retina are sensitive to wavelengths of visible light that are:

Answer 17

blue, green, red

Question 18

There are _____ primary taste sensations.

Answer 18

4

Question 19

The fibrous outermost tunic seen anteriorly as the “white of the eye” is the:

Answer 19

sclera

Question 20

Night blindness can be treated by administering

Answer 20

vitamin A

Question 21

The pigmented portion of the eye is the

Answer 21

iris

Question 22

The space between the suspensory ligaments and the iris are

Answer 22

posterior chamber

Question 23

Visual acuity is also known as

Answer 23

clarity of vision

Question 24

Rhodopsin is found in

Answer 24

rods

Question 25

Nearsightedness is more properly called

Answer 25

myopia

Question 26

The lens of the eye thickens when the

Answer 26

ciliary muscles relax

Question 27

The oily secretions that lubricate the eye are produced by the

Answer 27

tarsal glands

Question 28

Normal eye focusing is termed

Answer 28

emmetropia

Question 29

Loss of lens transparency is referred to as

Answer 29

cataract

Question 30

Tarsal glands associated with the edges of the eyelids are considered modified

Answer 30

sebaceous glands

Question 31

Which layer of the eye contains rods and cones?

Answer 31

retina

Question 32

Which of the following concerning olfaction is false?

Answer 32

Olfactory receptors are highly modified neurons

Question 33

The gel-like substance that reinforces the eyeball and prevents is from collapsing inward is the:

Answer 33

vitreous humor

Question 34

Olfactory glands

Answer 34

produce a pigments mucus that covers the olfactory epithelium

Question 35

The vitreous body

Answer 35

helps to stabilize the eye and give physical support to the retina

Question 36

The only special sense that is NOT fully functional at birth is:

Answer 36

vision

Question 37

The lacrimal glands

Answer 37

a and b only

Question 38

The color receptors within the retina are sensitive to lights that are

Answer 38

red, blue, green

Question 39

The function of gustatory receptors parallels that of

Answer 39

olfactory receptors in the nose

Question 40

The pigmented portion of the eye that has a rounded opening through which light passes is the:

Answer 40

iris

Question 41

A sudden flash of bright light would

Answer 41

cause contraction of the pupillary constrictor muscles

Question 42

Eyes suddenly exposed to bright light experience

Answer 42

pupillary reflex

Question 43

The decreased lens elasticity associated with aging that makes it difficult to focus on near objects is known as:

Answer 43

presbyopia

Question 44

Which of the following correctly lists the order of the parts through which light passes as it enters the eye:

Answer 44

Cornea, aqueous humor, lens, vitreous humor

Question 45

As nerve fibers from the retina travel to the brain, axons from the

Answer 45

retinas of both eyes ALL cross over

Question 46

The anterior cavity is

Answer 46

filled with aqueous humor

Question 47

Chemoreceptors are located in the

Answer 47

carotid and aortic bodies

Question 48

The transparent central anterior portion of the sclera through which light enters the eye is called the:

Answer 48

cornea

Question 49

The gland that produces tears in the eye is called the:

Answer 49

lacrimal gland

Question 50

Which of the following extrinsic eye muscles is responsible for enabling the eye to look upward?

Answer 50

superior rectus

Question 51

The transparent portion of the eye is the

Answer 51

cornea

Question 52

A blind spot in the retina occurs where

Answer 52

the optic nerve attaches to the retina

Question 53

Which of the following is a primary taste sensation?

Answer 53

sweet

Question 54

The highly contagious bacterial infection known as "pink eye" is caused by bacterial or viral irritation of the:

Answer 54

conjunctiva

Question 55

Olfactory receptors are examples of

Answer 55

chemoreceptors

Question 56

The lens focuses light on the photoreceptor cells by

Answer 56

changing shape

Question 57

When all three cone populations are stimulated, one sees

Answer 57

white

Question 58

Stereoscopic vision results when the

Answer 58

images in each eye are slightly different

Question 59

Which one of the following is NOT true of colorblindness?

Answer 59

it occurs more often in women

Question 60

The space between the iris and the cornea is the

Answer 60

anterior chamber

Question 61

A device that monitors the activity of the photoreceptor cells of the eye indicates that there is a constant flow of neurotransmitters being released by the photoreceptor cells. This info implies that the subject is

Answer 61

in a dark room

Question 62

A structure that is located at the medial cants and contains glands that produce a gritty secretion is the

Answer 62

lacrimal caruncle

Question 63

The special senses are

Answer 63

all of the above