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2021 Fall Review - the eye

Total questions: 65

Worksheet time: 33mins

Name
Class
Date
1.

What are rich with nerve endings for the blink reflex ?

a)

eyebrows

b)

eyelids

c)

eyelashes

d)

ciliary glands

2.

What's a bacterial/viral eye infection that is highly contagious and leads to conjuntivitis ?

a)

cataracts

b)

water eyes

c)

pinkeye

d)

glaucoma

3.

What liquid cleanses, protects, moistens, and lubricates the eye ? (2 answers)

a)

lacrimal secretions

b)

aqueous humor

c)

tears

d)

lysozymes

4.

What are modified sweat glands between the eyelashes that lubricate the eyelids ?

a)

lacrimal glands

b)

apocrine glands

c)

sebaceous glands

d)

ciliary glands

5.

What's the transparent mucous membrane lining the eyball and inside the eyelids for lubrication ?

a)

lacrimal glands

b)

conjunctiva

c)

sclera

d)

choroid

6.

What protects and lubricates the eyes anteriorly by blinking ?

a)

eyebrows

b)

eyelids

c)

eyelashes

d)

ciliary glands

7.

The __________ glands release a dilute saline solution called __________.

a)

ciliary; aqueous humor

b)

ciliary; tears

c)

lacrimal; tears

d)

lacrimal; aqueous humor

8.

What shades the eyes and prevents perspiration from getting into the eyes ?

a)

eyebrows

b)

eyelids

c)

eyelashes

d)

ciliary glands

9.

Nasal inflammation impairs the drainage of tears resulting in _____________ ?

a)

retinal detachment

b)

glaucoma

c)

watery eyes

d)

cataracts

10.

What is inflammation of the conjunctiva resulting in red, irritated eyes called ?

a)

cataracts

b)

conjunctivitis

c)

pinkeye

d)

glaucoma

11.

Tears contain antibodies and ___________ (enzymes that destroy bacteria) to help the ____________ system.

a)

aqueous humor; endocrine

b)

aqueous humor; immune

c)

lysozymes; immune

d)

lysozymes; endocrine

12.

The ____________ muscle depresses the eye and turns it medially.

a)

inferior rectus

b)

inferior oblique

c)

superior rectus

d)

superior oblique

13.

There are ________ strap-like _____________ (external-voluntary) to move the eye.

a)

4; intrinsic

b)

4; extrinsic

c)

6; extrinsic

d)

6; intrinsic

14.

The ___________ muscles elevates the eye and turns it medially.

a)

inferior rectus

b)

inferior oblique

c)

superior rectus

d)

superior oblique

15.

Which cranial nerve controls the superior oblique muscle ?

a)

abducens

b)

trochlear

c)

oculomotor

d)

vestibulocochlear

16.

The __________ moves the eye laterally only, and the _______ moves the eye medially only.

a)

inferior rectus; medial rectus

b)

medial rectus; lateral rectus

c)

lateral rectus; medial rectus

d)

lateral rectus; superior rectus

17.

Which cranial nerve controls the lateral rectus ?

a)

abducens

b)

trochlear

c)

oculomotor

d)

vestibulocochlear

18.

The ___________ elevates the eye and turns in laterally.

a)

inferior rectus

b)

inferior oblique

c)

superior rectus

d)

superior oblique

19.

Which cranial nerve controls the medial, superior, and inferior rectus, and the inferior oblique ?

a)

abducens

b)

trochlear

c)

oculomotor

d)

vestibulocochlear

20.

The _________ depresses the eye and turns it laterally.

a)

inferior rectus

b)

inferior oblique

c)

superior rectus

d)

superior oblique

21.

What congenital weakness of the extrinsic eye muscles cause cross eyes or a lazy eye ?

a)

strabismus

b)

diplopia

c)

myopia

d)

hyperopia

22.

What is the disorder in which eye muscles are not coordinated, causing double vision ?

a)

strabismus

b)

diplopia

c)

myopia

d)

hyperopia

23.

What are the 3 layers of the eyeball ? superficial to deep

a)

fibrous - vascular - retina

b)

fibrous - retina - vascular

c)

retina - vascular - fibrous

d)

vascular - fibrous - retina

24.

What is the outermost layer of the eyeball containing the sclera and cornea ?

a)

fibrous

b)

retina

c)

vascular

d)

liquid chambers

25.

What's the transparent window in the sclera that allows light to enter the eye ?

a)

iris

b)

cornea

c)

choroid

d)

ciliary body

26.

What's well supplied with nerve endings but not blood vessels, so it can be transplanted ?

a)

iris

b)

cornea

c)

choroid

d)

ciliary body

27.

What's the white, opaque tissue used for eye muscle attachment, eye protection, and eye shape ?

a)

sclera

b)

cornea

c)

choroid

d)

ciliary body

28.

What is the middle pigmented layer of the eyeball containing the choroid, ciliary body, and the iris ?

a)

fibrous

b)

retina

c)

vascular

d)

liquid chambers

29.

What absorbs light to prevent it from scattering in the eye ? (2 answers)

a)

pigmented layer

b)

cornea

c)

choroid

d)

ciliary body

30.

What is made up of intrinsic smooth muscles that varies pupil size for light entry regulation ?

a)

iris

b)

cornea

c)

choroid

d)

ciliary body

31.

What is the thickened ring of tissue that encircles the lens to the control its shape ?

a)

iris

b)

cornea

c)

choroid

d)

ciliary body

32.

What is the visible pigmented part of the eye that contains the rounded opening, the pupil ?

a)

iris

b)

cornea

c)

choroid

d)

ciliary body

33.

In dim light or distant vision, the pupils _________ with the __________ muscles.

a)

constrict; sphincter papillae

b)

constrict; dilator papillae

c)

dilate; sphincter papillae

d)

dilate; dilator papillae

34.

What is the blood vessel-rich, dark brown membrane that nourishes the eye ?

a)

iris

b)

cornea

c)

choroid

d)

ciliary body

35.

In bright light or close vision, the pupils __________ with the _________ muscles.

a)

constrict; sphincter papillae

b)

constrict; dilator papillae

c)

dilate; sphincter papillae

d)

dilate; dilator papillae

36.

What is the inner layer of the eyeball split into the pigmented and neural (photoreceptor) layers ?

a)

fibrous

b)

retina

c)

vascular

d)

liquid chambers

37.

What layer of the retina absorbs light in the eye, contains phagocytes, and stores Vitamin A ?

a)

choroid

b)

pigmented

c)

neural

d)

sclera

38.

What do photoreceptors respond to ?

a)

pain

b)

light

c)

chemicals

d)

touch

39.

What layer of the retina contains millions of photoreceptors ?

a)

choroid

b)

pigmented

c)

neural

d)

sclera

40.

When light focuses on the _____________ where the optic nerve leaves the eye, it disappears from view. (2 answers)

a)

vitrous humor

b)

optic disc

c)

blind spot

d)

fovea centralis

41.

Photoreceptors are distributed all over the retina except where the ___________ leaves the eyeball.

a)

visual cortex

b)

optic nerve

c)

optic tract

d)

optic radiation

42.

_________ are used to see color in ____________ light.

a)

Rods; bright

b)

Rods; dim

c)

Cones; dim

d)

Cones; bright

43.

_____________ are used to see in gray tones in ___________ light and provide peripheral vision.

a)

Rods; bright

b)

Rods; dims

c)

Cones; dim

d)

Cones; bright

44.

___________ are dense at the edge of the retina, while _________ are dense in the center of the retina.

a)

Cones; fovea centralis

b)

Rods; cones

c)

Fovea centralis; rods

d)

Cones; rods

45.

What is the tiny pit next to the optic disc containing only cones for the best visual acuity ?

a)

vitreous humor

b)

fovea centralis

c)

blind spot

d)

aqueous humor

46.

What anterior liquid chamber constantly drains/moves providing nutrients to the lens and cornea ?

a)

vitreous humor

b)

fovea centralis

c)

intraocular

d)

aqueous humor

47.

What posterior liquid chamber transmits light, supports lens, and holds retina layer together ?

a)

vitreous humor

b)

fovea centralis

c)

intraocular

d)

aqueous humor

48.

What occurs when the aqueous humor is blocked, causing the eye to compress the optic nerve ?

a)

glaucoma

b)

cataracts

c)

watery eyes

d)

retinal detachment

49.

What helps with intraocular pressure ? (2 answers)

a)

vitreous humor

b)

foveal centralis

c)

tapetum

d)

aqueous humor

50.

What is the biconvex, transparent, flexible structure that changes shape to focus light ?

a)

lens

b)

pupil

c)

cornea

d)

choroid

51.

What is the colorful shiny material behind the retina in animals with night vision ?

a)

tapetum

b)

pupil

c)

cornea

d)

choroid

52.

What is the clouding of the lens due to aging, causing hazy or blind vision ?

a)

glaucoma

b)

cataracts

c)

watery eyes

d)

retinal detachment

53.

Light goes through the vitreous humor, then the ___________ with photoreceptors then the ____________.

a)

retina; optic nerves

b)

retina; vitreous humor

c)

choroid; optic nerves

d)

cornea; vitreous humor

54.

What reflex constricts the pupils when viewing close objects for more acute vision ?

a)

convergence

b)

photopupillary

c)

accommodation pupillary

d)

visual pupillary

55.

What reflex moves the eyes medially when viewing close objects to aim both eyes at the object ?

a)

convergence

b)

photopupillary

c)

accommodation pupillary

d)

visual pupillary

56.

What reflex immediately constricts the pupils when suddenly exposed to bright light ?

a)

convergence

b)

photopupillary

c)

accommodation pupillary

d)

visual pupillary

57.

What is normal eye vision ?

a)

emmetropia

b)

myopia

c)

hyperopia

d)

astigmatism

58.

What sex-linked trait occurs when a person is lacking one or more cones ?

a)

color blindness

b)

blindness

c)

retinal detachment

d)

nyctalopia

59.

When an image is focused past the retina because the eyeball is too short, this is called ___________. (2 answers)

a)

farsightedness

b)

myopia

c)

hyperopia

d)

nearsightedness

60.

True or False: Females are more commonly colorblind.

a)

True

b)

False

61.

Damage to the eye, optic nerve, optic tract, thalamus, or visual cortex can cause ______________.

a)

color blindness.

b)

blindness.

c)

myopia.

d)

nyctalopia.

62.

When images are blurry due to unequal curvatures of the cornea or lens, this is called ______________ .

a)

emmetropia

b)

myopia

c)

hyperopia

d)

astigmatism

63.

A condition in which the pigmented and neural layers detach causing permanent blindness is called __________.

a)

astigmatism

b)

retinal detachment

c)

myopia

d)

nyctalopia

64.

What occurs when rods are not functioning properly due to Vitamin A deficiency ? (2 answers)

a)

color blindness

b)

blindness

c)

night blindness

d)

nyctalopia

65.

When an image is focused before the retina because the eyeball is too long, this is called ____________. (2 answers)

a)

farsightedness

b)

myopia

c)

hyperopia

d)

nearsightedness