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Biol 205 > Ch. 18 Day 3 > Flashcards

Ch. 18 Day 3 Flashcards

1
Q

functions of eyebrows

A

prevent surface of eyes debrief
block sun
sensory
communicate
look good

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2
Q

window shield wipers of the eye

A

palpebrae

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3
Q

palpebrae is the

A

eyelashes

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4
Q

blink per minute

A

25x

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5
Q

where eye comes together is called

A

lacrimal caruncle

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6
Q

structures of eyelid how many tissue layers

A

4

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7
Q

orbicularis oculi contracts to help

A

close eyes

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8
Q

levator palpebrae superioris function

A

open eyes

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9
Q

tarsal plate help give eyes

A

shape

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10
Q

tarsal gland prevent

A

eyes to stick together

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11
Q

palpebral conjunctiva covers

A

inner surface of eyelid

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12
Q

bulbar ocular conjunctiva covers

A

anterior surface of the eye

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13
Q

palpebral conjunctiva connects to

A

fornix

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14
Q

lacrimal apparatus is tied with

A

tears

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15
Q

lacrimal gland sends

A

10-12 ducts to superior fornix

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16
Q

lacrimal gland produces

A

slightly alkaline fluid containing mucus, fluids, and lysozyme

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17
Q

tears reduce

A

friction

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18
Q

tears remove

A

debris

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19
Q

tears prevent

A

bacterial injection

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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
Q

cornea looks

A

transparent and continuous with sclera

26
Q

cornea is a dense

A

matrix with multiple layers of collagen fibers

27
Q

damage to cornea can cause you to be

A

blind

28
Q

vascular layer of eye contains

A

choroid, iris, cilariy body

29
Q

vascular layer helps

A

carry blood vessels
regulate light entering
lens shape

30
Q

choroid is posterior

A

5/6 of eye

31
Q

iris is the

A

pigmented part, two layers of interinsic eye muscles surrounding the pupil

32
Q

cilary body secretes

A

aqueous humor

33
Q

cilary body ring

A

cilary muscle that determines shape of lens

34
Q

as you age the lens gets

A

less flexible

35
Q

inner layer of eye contains

A

retina

36
Q

retina outer layer called

A

pigmented layer

37
Q

outer pigmented layer absorbs

A

light that passes through retina

38
Q

inner neural layer contains

A

photoreceptors

39
Q

2 photoreceptors are called

A

rods and cones

40
Q

rods control

A

b and w vision in dim light

41
Q

cones is the

A

high acuity color vision fovea centralis

42
Q

optic disc is where there is

A

no photoreceptors

43
Q

humors include

A

aqueus humor
vitreous body

44
Q

aqueous humor produced by

A

inner cilary body in posterior chamber

45
Q

eye processing happens within the

A

retina

46
Q

optic nerve meets at the

A

optic chiasm

47
Q

what type of decussation occurs at optic chiasm

A

partial decussation

48
Q

weird decussation of eye

A

half fibers of each retina go left thalamus others go right

49
Q

fibers from thalamus carry info to the

A

visual cortex

Biol 205 (45 decks)

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