Ch. 18 Day 3 Flashcards

(49 cards)

1
Q

functions of eyebrows

A

prevent surface of eyes debrief
block sun
sensory
communicate
look good

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

window shield wipers of the eye

A

palpebrae

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

palpebrae is the

A

eyelashes

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

blink per minute

A

25x

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

where eye comes together is called

A

lacrimal caruncle

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

structures of eyelid how many tissue layers

A

4

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

orbicularis oculi contracts to help

A

close eyes

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

levator palpebrae superioris function

A

open eyes

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

tarsal plate help give eyes

A

shape

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

tarsal gland prevent

A

eyes to stick together

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

palpebral conjunctiva covers

A

inner surface of eyelid

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

bulbar ocular conjunctiva covers

A

anterior surface of the eye

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

palpebral conjunctiva connects to

A

fornix

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

lacrimal apparatus is tied with

A

tears

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

lacrimal gland sends

A

10-12 ducts to superior fornix

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

lacrimal gland produces

A

slightly alkaline fluid containing mucus, fluids, and lysozyme

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

tears reduce

A

friction

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

tears remove

A

debris

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

tears prevent

A

bacterial injection

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

CNII innervates how many muscles

A

4
rectuses
inferior oblique

21
Q

CNIV innervates

A

superior oblique

22
Q

CNVI innervates

A

lateral rectus

23
Q

fibrous layer of eye provides

A

support/protection
attachment for ocular muscles
helps focusing

24
Q

sclera is dense

A

fibrous ct covering most of eye

25
cornea looks
transparent and continuous with sclera
26
cornea is a dense
matrix with multiple layers of collagen fibers
27
damage to cornea can cause you to be
blind
28
vascular layer of eye contains
choroid, iris, cilariy body
29
vascular layer helps
carry blood vessels regulate light entering lens shape
30
choroid is posterior
5/6 of eye
31
iris is the
pigmented part, two layers of interinsic eye muscles surrounding the pupil
32
cilary body secretes
aqueous humor
33
cilary body ring
cilary muscle that determines shape of lens
34
as you age the lens gets
less flexible
35
inner layer of eye contains
retina
36
retina outer layer called
pigmented layer
37
outer pigmented layer absorbs
light that passes through retina
38
inner neural layer contains
photoreceptors
39
2 photoreceptors are called
rods and cones
40
rods control
b and w vision in dim light
41
cones is the
high acuity color vision fovea centralis
42
optic disc is where there is
no photoreceptors
43
humors include
aqueus humor vitreous body
44
aqueous humor produced by
inner cilary body in posterior chamber
45
eye processing happens within the
retina
46
optic nerve meets at the
optic chiasm
47
what type of decussation occurs at optic chiasm
partial decussation
48
weird decussation of eye
half fibers of each retina go left thalamus others go right
49
fibers from thalamus carry info to the
visual cortex