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Anatomy And Phys 1 > Anatomy Of The Eye > Flashcards

Anatomy Of The Eye Flashcards

1
Q

lids of skin that cover the upper and lower part of the eye (eyelids)

A

Palpebrae

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2
Q

clear mucus membranes that line the eyelids (palpebral conjunctivae) and line the anterior white of the eye (bulbar conjunctiva)

A

Conjunctivae

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3
Q

junction where the eye meets medially and laterally

A

Medial and lateral commissures

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4
Q

in superiolateral aspect of the orbit of the eye.

A

Lacrimal gland

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5
Q

(inferior and superior): two lateral openings in the medial aspect of each eyelid

A

Lacrimal punctum

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6
Q

Lacrimal punctum connects two _______ (inferior and superior)

A

lacrimal canaliculus

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7
Q

single pouch in the medial orbital wall

A

Lacrimal sac

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8
Q

tube that empties into the nasal cavity

A

Nasolacrimal duct

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9
Q

Moves eye laterally

A

Lateral rectus. VI abducens

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10
Q

Moves eye medially

A

Medial rectus. III oculomotor

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11
Q

Elevates the eye and turns it medially

A

Superior rectus. III

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12
Q

depresses the eye and turns it medially

A

Inferior rectus. III

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13
Q

elevates the eye and turns it laterally

A

Inferior oblique. III

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14
Q

depresses the eye and turns
it laterally

A

Superior oblique. IV trochlear

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15
Q

Superior oblique is connected to the eye via a tendon pulley system using the

A

trochlea

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16
Q

“whites” of the eye, helps to maintain the shape of the eye and serves as an attachment for the extrinsic eye muscle

A

Sclera

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17
Q

structurally continuous with the sclera, transparent, bulges anteriorly, no blood vessels, major light bending (refraction) medium of the eye

A

Cornea

18
Q

rich in blood-vessels that help nourish the other layers of the eye, melanin helps absorb excess light

A

Choroid

19
Q

changes in shape based on whether the person is looking near or farther away ( accommodation is the reflex)

A

Lens

20
Q

contracts or relaxes to change the shape of
the lens

A

Ciliary body

21
Q

connect the ciliary body to the lens

A

Suspensory ligaments

22
Q

anterior part of the vascular layer that is pigmented (eye color) with two layers of smooth muscle ( pupillary sphincter muscle and pupillary dilator muscle)

A

Iris

23
Q

central opening in the middle of the iris where light enters

A

Pupil

24
Q

receive light stimuli
that is routed to the brain
• Outer pigmented layer
• Inner neural layer – rods and cones closest to this

A

Photoreceptor

25
Q

Neural stimulus travels from _______ ->_________ ->__________ -> gather at the optic disc and exit the eye to form the optic nerve (II)

A

rods and cones, bipolar cells, retinal ganglion cells

26
Q

HAS NO PHOTORECEPTORS

A

Optic disc (blind spot)

27
Q

Has high photoreceptor concentration

A

Macula lutea

28
Q

Highest visual acuity is called the

A

Fovea

29
Q

ciliary body is relaxed and the lens is flattened. Normal vis

A

Emmotrophic state

30
Q

ciliary muscle contracts allowing
the lens to become thicker

A

Accommodation

31
Q

Eyeball is too long and the
image is focused in front of the retina

A

Myopia (nearsightedness)

32
Q

Eyeball is shorter than normal
and the image is focused behind the retina

A

Hyperopia (farsightedness)

33
Q

the lens loses its elastic shape
making it more difficult to focus on close objects

A

Presbyopia

34
Q

closest distance that an individual is able to focus on an object

A

Near point of accommodation

35
Q

Color blindness occurs more frequently in males because it is an

A

X-linked trait

36
Q

axons of retinal ganglion cells
join and exit the eye to form the optic nerve

A

Optic disc

37
Q

The_____ does NOT contain ANY
photoreceptors at the “blind spot”. Cranial nerve II

A

retina

38
Q

deep to the stapes and transmits vibrations from the stapes to the perilymph of the inner ear

A

Oval window

39
Q

connects the middle ear to the superior portion of the pharynx

A

Pharyngotmypanic (auditory) tube

40
Q

Contraction of the_____ muscle helps
equalize pressure

A

tensor tympani

41
Q

The cochlea analyzes different frequencies along it’s spiraled length using the basilar membrane which varies in stiffness or resonance along its length . What section of cochlea is being stimulated

A

Pitch

42
Q

caused by the amplitude of wave vibrations

A

Loudness

Anatomy And Phys 1 (39 decks)

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