SENSES Flashcards

1
Q

accessory structures of the eyes

A

extrinsic eye muscles
eyelids
conjunctiva
lacrimal appraratus

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2
Q

space between eyelids in an open eye

A

palpebral fissure

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3
Q

modified sebaceous glands in eyelid ridges; produce oily secretion (Lubricates eye)

A

tarsal glands

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4
Q

modified sweat glands (between eyelashes)

A

ciliary glands

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5
Q

membrane; lines eyelids covers outer surface of eyeball

A

conjunctiva

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6
Q

consist lacrimal glands & ducts that drain lacrimal secretion

A

lacrimal apparatus

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7
Q

they release dilute salt solution / tears

A

lacrimal glands

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8
Q

enzymes that destroys bacteria; cleanse and protects the eye

A

lysozyme

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9
Q

elevates eye & turns it medially :
depresses eye & turns it medially:

A

Superior
Inferior
rectus

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10
Q

elevates eye ; turns it laterally
depresses eye; turns it laterally

A

Inferior
superior
oblique

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11
Q

outermost layer of eyeball

A

fibrous layer

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12
Q

middle layer

A

vascular layer

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13
Q

innermost layer

A

sensory layer

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14
Q

supplied in nerve endings; only tissue in body that can be transplanted

A

cornea

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15
Q

thick white connective tissue

A

sclera

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16
Q

blood rich tunic contains dark pigment; prevents light scattering inside the eye

A

choroid

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17
Q

2 smooth muscle structures formed by choroid

A

ciliary body
iris

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18
Q

circularly and radially arranged smooth muscle form the

A

iris

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19
Q

are where optic nerve leaves eyeball; no photoreceptors

A

optic disc

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20
Q

they act as phagocytes to remove dead receptor cells

A

retina

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21
Q

allows us to see in gray tones; dim light

A

rods

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22
Q

purple pigment found in rods

A

rhodopsin

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22
Q

densest; allows us to see color under light conditions

A

cones

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23
Q

tiny pit contains only cones; greatest visual acuity

A

fovea centralis

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24
Q

flexible bioconvex crystal like structure

A

lens

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25
Q

loss of lens transparency

A

cataracts

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26
Q

clear watery fluid in lens

A

aqueous humor

27
Q

gel like substance in lens ; helps prevent eyeball from collapsing inward

A

vitreous humor

28
Q

pressure inside the eye

A

intraocular pressure

29
Q

instrument that illuminates interior of eyes

A

ophtalmoscope

30
Q

posterior wall of eye

A

fundus

31
Q

ability of eye to focus for close objects

A

accomodation

32
Q

image formed on retina result of light bending activity

A

real image

33
Q

damage of visual cortex; loss of visual field

A

Hemianopia

34
Q

nearsightedness ; focal point in front of retina

A

myopia

35
Q

farsighted; behind retina

A

hyperopic eye

36
Q

reflexive movements of eye when we view close objects

A

convergence

37
Q

pupils constricting ; exposed to bright light

A

photopupillary reflex

38
Q

pupils constricting ; viewing close objects

A

accommodation pupillary reflex

39
Q

receptors respond to physical forces

A

mechanoreceptors

40
Q

shell shaped structure surrounding auditory canal

A

auricle/pinna

41
Q

narrow chamber carved into temporal bone

A

external acoustic meatus

42
Q

walls; secrete earwax

A

ceruminous glands

43
Q

small, airfilled mucosa lined cavity within temporal bone

A

middle ear cavity

44
Q

auditory tube

A

pharyngotympanic

45
Q

eardrums bulges and inflammed

A

otitis media

46
Q

transmit & amplify the vibratory motion of the eardrum to fluids

A

ossicles

47
Q

maze of bony chambers

A

bony labryrinth

48
Q

plasmalike fluid of bony labrynth

A

perilymph

49
Q

contains hearing receptors / hair cells

A

spiral organ of corti

50
Q

hair cells transmit impulses via

A

cochlear nerve

51
Q

equilibrium receptors of inner ear

A

vestibular apparatus

52
Q

reports on changes on changes in the position of the head in space

A

maculae

53
Q

a gelatinous mass studded with otoliths

A

otoloithic membrane

54
Q

respond to angular/ rotational movements of head rather than to straight line

A

dynamic equilibrium

55
Q

consist of tuft hair cells covered w cupula

A

crista ampullaris

56
Q

receptors for taste and olfaction

A

chemoreceptors

57
Q

bundled axons of olfactory neurons

A

olfactory filaments

58
Q

conducts impulses to olfactory cortex of the brain

A

olfactory nerve

59
Q

small peglike projections

A

papillae

60
Q

receptor cells that respond to chemicals dissolved in the saliva are epithelial cells called

A

gustatory cells

61
Q

anterior 2/3 of tongue

A

facial nerves VII

62
Q

respond to hydrogen ions ; side of tongue

A

sour receptors

63
Q

respond to alkaloids; back of tongue

A

bitter receptors

64
Q

respond to metal ions

A

salty rceptors

65
Q

respond to amcid ; pharynx

A

umami