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Anatomy Lab > Quiz 8 (Eye + Ear) > Flashcards

Quiz 8 (Eye + Ear) Flashcards

1
Q

Pathway of lacrimal fluid

A 
lacrimal gland
excretory ducts
medially across eye
lacrimal puncta
lacrimal canals
lacrimal sack
nasolacrimal duct
nasal cavity
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2
Q

Lacrimal gland is normally innervated by

A

facial nerve during normal levels of production

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3
Q

lacrimal gland is innervated by this nerve when crying

A

opthalmic branch (CN 5)

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4
Q

Another name for palpebrae

A

eyelids

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5
Q

palpebrae

A

keep the eye lubricated

protect the surface of the eye

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6
Q

deep to the subcutaneous layer of eyelids, board sheets of connective tissue

A

tarsal plates

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7
Q

Type of tissue composing the conjunctiva

A

nonkeratinized stratified squamous epithelium

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8
Q

Covers inner surface of eyelids

A

palpebral conjunctiva

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9
Q

covers outer surface of the anterior surface of the eye

A

ocular/bulbar conjuctiva

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10
Q

muscle around the eye (circular muscle)

A

orbicularis oculi

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11
Q

innervation of the orbicularis oculi

A

facial nerve

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12
Q

focuses the visual image on the retinal photoreceptors

A

lens

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13
Q

this covers the lens

A

dense, fibrous capsule covers the entire lens

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14
Q

Lacrimal apparatus consists of the following

A 
lacrimal gland
lacrimal puncta
lacrimal canals (canaliculi)
lacrimal sac
nasolacrimal duct
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15
Q

pocket created where the conjunctiva of the eyelid connects with the eye is known as

A

Fornix

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16
Q

The lacrimal gland resides here

A

a depression in the frontal bone within the orbit and superior and lateral to the eyeball

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17
Q

superior and inferior, drain the lacrimal lake, empty into lacrimal canaliculi

A

lacrimal puncta

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18
Q

run along groves in the lacrimal bone, lead to lacrimal sac

A

lacrimal canals (canaliculi)

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19
Q

fills the lacrimal groove of the lacrimal bone

A

lacrimal sac

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20
Q

extends along the nasolacrimal canal, formed by the lacrimal bone and the maxilla

A

nasolacrimal duct

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21
Q

orbicularis oculi: A and N

A

closes eyelids and draws eyebrows inferiorly

facial

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22
Q

levator palpebrae superioris: A and N

A

Blinking muscles, elevates eyelid

oculomotor nerve

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23
Q

Superior rectus: A and N

A

Moves the eye superiorly. slight medial movement

oculomotor nerve

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24
Q

inferior rectus: A and N

A

Moves the eye inferiorly. slight medial movement

oculomotor nerve

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25
Q

Medial rectus: A and N

A

moves the eye medially

oculomotor nerve

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26
Q

lateral rectus: A and N

A

moves the eye laterally

abducens

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27
Q

inferior oblique: A and N

A

slight lateral movement of the eye

oculomotor nerve

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28
Q

superior oblique: A and N

A

slight lateral movement of the eye

trochlear nerve

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29
Q

How to ID the position of the eye

A

inferior oblique is connected directly to the lateral side of the eye and wraps around the bottom of the eye medially
superior oblique is connected to the eye via a tendon and wraps around the top of the eye medially

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30
Q

trochlea

A

fibrocartilage, allows superior oblique muscle to act as a pulley

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31
Q

Pathway of aqueous humor

A 
starts in the ciliary processes
posterior chamber of the anterior cavity
through pupil
anterior chamber of the anterior cavity
canal of Schlemm
drains into blood stream
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32
Q

Accommodation: Lens, close

A

Thick

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33
Q

Accommodation: Lens, far

A

thin/flat

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34
Q

Accommodation: ciliary muscle, close

A

contracted

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35
Q

Accommodation: ciliary muscle, far

A

relaxed

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36
Q

Accommodation: suspensory ligaments, close

A

not tense/loose

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37
Q

Accommodation: suspensory ligaments, far

A

tense

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38
Q

Fibrous tunic is made of

A

cornea

sclera

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39
Q

anterior aspect of eye, transparent, allows light into eye

A

cornea

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40
Q

refracts light as it enters the eye

A

cornea

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41
Q

Whites of eye, muscular attachment to eye, fierous connective tissue, gives eye form

A

sclera

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42
Q

vascular tunic AKA

A

Uvea

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43
Q

main parts of the vascular tunic

A 
choroid (coat)
iris
pupil
ciliary body
suspensory ligaments
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44
Q

pigmented layer of the eye, melanocytes produce melanin

A

choroid (coat)

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45
Q

colored part of the eye, muscular

A

iris

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46
Q

muscles of tye iris

A

pupillary dilators

pupillary constrictors

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47
Q

radial muscles of the eye

A

pupillary dilators

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48
Q

circular muscles of the eye

A

pupillary constrictors

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49
Q

pupillary dilators do this

A

open pupil and allow more light into eye

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50
Q

pupillary constrictors do this

A

close pupil and allow less light into eye

51
Q

hole in the middle of the eye

A

pupil

52
Q

part of the eye that means little person

A

pupil

53
Q

begins at junction between the cornea and sclera

A

ciliary body

54
Q

structures of the ciliary body

A

ciliary muscles

ciliary processes

55
Q

bulk of ciliary body, ring that projects into the interior of the eye

A

ciliary muscle

56
Q

epithelium is thrown into numerous folds in this part of the vascular tunic

A

ciliary processes

57
Q

how to say ciliary processes on the test

A

ciliary processes of the ciliary body

58
Q

attached to ciliary processes and lens

A

suspensory ligaments (zonular fibers)

59
Q

Main parts of the neural tunic

A 
retina
macula lutea
fovea centralis
optic disc
anterior cavity
posterior cavity
60
Q

inner most layer of the eye, consists of neural tissue and is an extension of the brain

A

neural tunic

61
Q

contains photorecepetors, two layers

A

retina

62
Q

two layers of the retina

A

neural retina and pigment layer

63
Q

exact posterior of retina, contains no rods

A

macula lutea

64
Q

highest visual accuity, highest concentration of cones

A

fovea centralis

65
Q

highest visual acuity

A

fovea centralis

66
Q

blind spot

A

optic disc

67
Q

the optic disc consists of this

A

optic nerve and veins of eye leave at this location

68
Q

area anterior to the lens

A

anterior cavity

69
Q

cornea to iris

A

anterior chamber of the anterior cavity

70
Q

iris to lens

A

posterior chamber of the anterior cavity

71
Q

watery fluid that occupies the anterior cavity

A

aqueous humor

72
Q

scleral venous sinus, aqueous humor passes through back into circulation at this point

A

canal of schlemm

73
Q

the cana of schlemm is in this area of the eye

A

anterior cavity

74
Q

another name for posterior cavity

A

vitreous chamber

75
Q

posterior to lens

A

posterior cavity

76
Q

gelatinous fluid that holds shape of the eye

A

vitreous humor

77
Q

Most exterior structure of the ear

A

pinna / auricle

78
Q

external ear structure that is just outside of the tympanic membrane

A

external auditory canal

79
Q

Middle ear structures (5)

A 
tympanic membrane (tympanum)
auditory ossicles
tensor tympani
stapedius
auditory (eustachian) tube
80
Q

auditory ossicles 3

A

malleus
incus
stapes

81
Q

Ear drum, barrier between external and middle ear

A

tympanic membrane (tympanum)

82
Q

transfer vibrations from tympanic membrane to the perilymph of the scala vestibuli

A

auditory ossicles

83
Q

lateral ossicle

A

malleus

84
Q

middle ossicle

A

incus

85
Q

medial ossicle

A

stapes

86
Q

This middle ear muscle inserts on the handle of the malleus

A

tensor tympani

87
Q

tensor tympani is innervated by

A

mandibular branch of trigeminal nerve (CN V)

88
Q

This middle ear muscle inserts on the stapes

A

stapedius

89
Q

innervation of the stapedius

A

facial nerve

90
Q

communication between middle ear and nasopharynx

A

auditory (eustachian) tube

91
Q

function of the auditory tube

A

equalizes pressure in the middle ear

92
Q

bony labyrinth is filled with this

A

perilymph

93
Q

anterior semicircular canal

A

‘yes’ movement

94
Q

lateral semicircular canal

A

‘no’ movement (shake)

95
Q

posterior semicircular canal

A

cartwheel movement (tilting)

96
Q

contains the utricle and saccule

A

vestibule

97
Q

snail shaped portion of inner ear associated with hearing

A

cochlea

98
Q

part of the membranous labyrinth that contains the sensory receptors at the bases of the semicircular ducts (cristae) (A,L,P)

A

Amupullae

99
Q

membranous labyrinth is filled with

A

endolymph

100
Q

responsible for dynamic equilibrium

A

semicircular ducts

101
Q

responsible for static equilibrium

A

utricle

saccule

102
Q

membranous structure in the semicircular canals

A

semicircular ducts (A,L,P)

103
Q

1 of membranous sacks that contain receptors contained in the vestibule,structure superior to the saccule

A

utricle

104
Q

1 of membranous sacks that contain receptors contained in the vestibule,structure inferior to the utricle

A

saccule

105
Q

horizontal acceleration

A

utricle

106
Q

vertical acceleration

A

saccule

107
Q

Slow vibrations produce this type of sound, and hits this area of the basilar membrane

A

deep sounds

distal

108
Q

fast vibrations produce this type of sound, and hits this area of the basilar membrane

A

high pitch sounds

proximal

109
Q

tonotopic organization

A

different sounds cause maximal vibration in different areas of the cochlea

110
Q

ascending scala

A

scala vestibuli

111
Q

decending scala

A

scala tympani

112
Q

scala filled with endolymph and membranous labyrinth

A

scala media (cochlear duct)

113
Q

membrane that seperates scala vestibuli and scala media

A

vestibular membrane

114
Q

membrane that rests right over the top of the organ of corti

A

techtorial membrane

115
Q

membrane that seperates scala media from the scala tympani

A

basilar membrane

116
Q

hairs of the cochlear duct (scala media) are found here

A

organ of corti

117
Q

scala that shares half of its area with the scala media

A

scala vestibuli

118
Q

inferior of the two openings, thin membrane that spans the opening and seperates the perilymph from the air of the middle ear

A

round window

119
Q

superior of the two openings, almost filled by stapes, annular ligament completes the seal, vibration of the stapes causes pressure way to originate here

A

oval window

120
Q

nerve responsible for equilibrium

A

vestibular branch of vestibulocochlear nerve

121
Q

nerve responsible for hearing

A

cochlear branch of vestibulocochlear nerve

122
Q

pathway of sound (14 in order)

A 
pinna
external auditory canal
tympanic membrane
maleous
incus
stapes
oval window
displacement of perilymph in scala vestibuli
vibration of vestibular membrane
displaces endolymph in cochlear duct
vibration basilar membrane
bends haircells of the organ of corti against tectorial membrane
nerve impulse travels down cochlear branch of the vestibulocochlear nerve
123
Q

wavelike movement of fluid in the ear in response to vibrations at the oval window

A

pressure wave

Anatomy Lab (12 decks)

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