Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

anatomy and physiology > Chapter 16 pt3 > Flashcards

Chapter 16 pt3 Flashcards

1
Q

eyes are almost

A

spherical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

eye has the prescence of a _____ and _____ cavity

A

posterior and anterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

posterior cavity

A

contains permanent vitreous humor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

anterior cavity

A

contains circulating aqeous humor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

posterior cavity is the

A

largest portions of the eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

posterior cavity is located

A

behind lens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

anterior cavity is in front of lens behind

A

behind cornea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

eye has 3 tunics/layers called

A

fibrous(external)
vascular(middle)
retina(inner)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

parts of fibrous tunic

A

sclera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

vasular tunic contains

A

choroid
ciliary body
iris

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

retina area contains

A

pigmented layer
neurel layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

fibrous tunic is a ______ outer layer

A

tough

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

sclere is the _____ of the eye

A

white

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

conrea is anterior ______ transparent

A

convex “window”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

limbus

A

corneal scleral junction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

vascular tunic contains many

A

blood vesselrs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

area with many capillaries and blood vessels is

A

choroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

choroid brings nourishment to

A

retinal cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

melanocyts make ____ to absorbe extraneous light

A

melanin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

ciliary muscles and cililary processes help

A

hold the lens in place, and help with its manipulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

ciliary muscles

A

bands of smooth muscle connected to lens; alters lens shap

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

cililary processes

A

contains capillaries secreting aqeous humor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

iris gives _____ to eye

A

color

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

iris contains

A

smooth muscles, melanocytes, vessels, and neurel structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

iris divides into 2 chambers

A

anterior and posterior chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

pupil is

A

opening in the center of the iris connecting the 2 chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

iris controls

A

pupil diameter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Retina is the

A

innermost layer of eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

what are the three sublayers of retina

A

photoreceptor cell layer
bipolar layer
ganglion cell layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

photoreceptor cell layer

A

outermost layer, contains rods and cones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

what layer of retina contains pigment that reacts with light

A

Retina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Bipolar cell layer

A

dendrites receieve synaptic input from rods and cones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Ganglion cell layer

A

innermost neural layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

what cel layer has axons that father at optic discs an form optic nerve.

A

ganglion cell layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

ganglion cell layer is capable of

A

action potentials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Components of the Retina

A

optic discs, macula lutea, peripheral retina

37
Q

optic disc contains no

A

photoreceptors

38
Q

the optic disc is where

A

ganglion axons exit towards brain

39
Q

optic disc is a

A

blond spot

40
Q

macula lutea is a

A

round, yellow region lateral to optic disc

41
Q

what contains fovea centralis

A

macula lutea

42
Q

what has the high proportion of cones (few rods) and has the sharpest vision

A

macula lutea

43
Q

the peripheral retina contains mainly

A

primarily rods

44
Q

which part of the retina functions most effectively in low light

A

peripheral retina

45
Q

fovea centralis is like a

A

center of cones

46
Q

rods are ____ and _____ then cones; more numerous

A

longer and narrower

47
Q

each rod is highly sensitive and even react to ______

A

dim light

48
Q

rods can result in sensitivity to dim light but a

A

blurry image and gray scale images

49
Q

cones respond to

A

bright light

50
Q

cones allow for

A

collor vision and sharp vision

51
Q

the ear detects

A

sound and head movement

52
Q

external ear cmposed of

A

auricle, external acoustic meatus, tympanic membrane

53
Q

auricle

A

funnel shaped. visible part of ear with elastic cartilage

54
Q

tympanic membrane

A

ear drum;funnel shaped and seperated external and middle ear.

55
Q

external acoustic medias extends to

A

tympanic membrain

56
Q

the auricle protects

A

entryway and directs sound waves inward

57
Q

what vibrates when sound waves hit it

A

tymapnic membrane

58
Q

external acoustic meatus is the

A

ear canal

59
Q

ceruminous glands produce

A

cerumen

60
Q

ear wax impedes

A

microorganism growth

61
Q

midd ear contains

A

air filled tympanic cavity

62
Q

what seperates middle ear from inner ear

A

bony wall

63
Q

in the middle ear is the

A

tympanic cavity and auditory tube

64
Q

what allows release of air and fluid one pressure builds up

A

auditory tube

65
Q

auditory ossicles are

A

the three tiny bones of middle ear

66
Q

what are the auditory ossicles

A

malleus
incus
stapes

67
Q

the malleus is attached to

A

medial surface of tympanic membrane

68
Q

incus

A

middle possicle resembing and anvil

69
Q

stapes

A

resembles a stirrup of a saddle

70
Q

what auditory ossicle has a disclike fooplate fitting into an oval window

A

stapes

71
Q

auditory ossicles ____ sound waves

A

amplify

72
Q

auditory ossicles trasmit sound waves to

A

oval window

73
Q

auditory ossicles ______ along with the eardrum so the stapes moves in and out of oval window

A

vibrate

74
Q

two small muscles restrict ossicle movement during loud sounds

A

tensor tympani and stapesdius

75
Q

tensor tympani

A

attaches to malleus

76
Q

stepedius

A

attaches to stapes

77
Q

the inner ear is compised of 2

A

labarynths

78
Q

what are the 2 labyrinths that compose inner ear

A

bony labyrinth and membraneous labyrinth

79
Q

bony labyrinth

A

maselike spaces in temperoal bone

80
Q

membraneous labyrinth

A

membrane-lined fkuid filled tubes within bony labyrinth

81
Q

bony labyrinth is filled with own fluid called

A

parilymph

82
Q

membraneous labyrinth fuilled wih own fluid called

A

endolymph (rich in potassium)

83
Q

both fkluids in inner ear vibrate and respond to

A

sound waves

84
Q

inner ear covered by the

A

labyrinths

85
Q

inner ear is composed of three main regions

A

cochlea, vestibule, semicircular canals

86
Q

cochlea

A

houses membraneous cochlear duct

87
Q

vestibule

A

contains two saclike membraneous parts

88
Q

semicircular canals

A

contains membraneous semicircular ducts

89
Q

the two saclike membraeous oart of vestibuile are

A

utricle and saccule. they are positioned in right angles

anatomy and physiology (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions