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3/4 VET HEALTH > special senses > Flashcards

special senses Flashcards

1
Q

OS

A

Left eye

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2
Q

OU

A

Both eyes

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3
Q

OD

A

Right eye

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4
Q

VA

A

Visual acuity

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5
Q

VF

A

Visual field

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6
Q

3 layers of the eye

A

Fibrous-outermost
Vascular-middle
Nervous-innermost

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7
Q

What structures is the fibrous layer made of

A

Cornea and sclera

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8
Q

What is the vascular composed of

A

Choroid
Iris
Ciliary body

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9
Q

What is the nervous layer composed of

A

Retina

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10
Q

Ocul

A

Eye

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11
Q

Opthalm

A

Eye

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12
Q

Phak

A

Lens of the eye

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13
Q

Retin

A

Retina

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14
Q

Opt

A

Vision/sight

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15
Q

Structure of the cornea

A

Outermost transparent Layer
Convex shape

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16
Q

Function of the cornea

A

Refract light onto the retina

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17
Q

Structure of the sclera

A

White outer layer of the eye

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18
Q

Function of the sclera

A

Fibrous layer-maintains the shape of the eye

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19
Q

Describe the choroid

A

Lines posterior portion of inner sclera
Rich in blood vessels

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20
Q

Choroid function

A

Supplies nutrients to the retina
Light stimulates sensory receptors in the retina and is then absorbed by the choroid

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21
Q

Pupil structure

A

Opening in the iris

22
Q

Pupil function

A

Allows light to pass through

23
Q

What happens to the pupil when it’s bright

A

Constricts to limit light entering the eye

24
Q

What happens to the pupil when it’s dark

A

Dilates to let more light in

25
Q

Iris structure

A

Coloured part of the eye

26
Q

Iris function

A

Regulates amount of light entering the eye through control of the pupil
Dilated pupil-thin Iris

27
Q

aur/o

28
Q

aural discharge

A

discharge from the ear

29
Q

ot/o

30
Q

otitis

A

inflammation of the ear

31
Q

otalgia

A

pain in the air

32
Q

otorrhoea

A

discharge from ear

33
Q

myring/o

34
Q

tympan/o

35
Q

tympanotomy

A

surgical repair of the eardrum

36
Q

ear function

A

-to detect sound waves and convert to nerve signals
-to detect changes in position

37
Q

outer ear components

A

pinna/auricle
auditory canal

38
Q

outer ear function

A

to collect sound waves

39
Q

pinna function

A

shaped to funnel/concentrate/ collect sound waves into the auditory canal

40
Q

auditory canal function

A

transmit sound waves from the pinna to the eardrum

41
Q

middle ear structure

A

tympanic membrane(eardrum)
ossicles->malleus
incus
stapes

42
Q

middle ear function

A

transmit sound waves

43
Q

eardrum function

A

transmit sound waves via vibrations
protects middle ear

44
Q

ossicles function

A

transmit vibrations/sound waves from outer ear to cochlea
amplify sound waves

45
Q

inner ear structure

A

cochlea
vestibular system

46
Q

inner ear function

A

to process sound waves
to detect changes in body position

47
Q

cochlea

A

transforms sound waves into neural signals

48
Q

vestibular ystem

A

detect changes in body position then sends information to brain to maintain balance equilibrium

49
Q

eustachian tube

A

maintains
drains middle ear

50
Q

vestibular nerve

A

transmit messages from vestibule to the brain about balance and equilibrium

51
Q

cochlear nerve

A

transmit messages from vestibula to brain to interpret sound

3/4 VET HEALTH (22 decks)

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