Eye Flashcards

1
Q

1st and most powerful stucture of opticql system

A

Cornea

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2
Q

Center of central vision

A

Fovea

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3
Q

Enables lense to change shape

A

Zonula

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4
Q

Middle vascular layer of the eye

A

Uvea

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5
Q

Film of the eye

A

Optic disk

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6
Q

1st part of the brain to receive visual input

A

Optic chiasm

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7
Q

Relay station of visual cortex

A

Lateral geniculate body

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8
Q

Keeps images focused on the retina

A

Lens

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9
Q

Layer of blood vessel that supplies blood to the retina

A

Choroid

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10
Q

Where aqueous humor is produced

A

Ciliary body

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11
Q

Blocked in glqucoma

A

Canal of schlemm

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12
Q

Corneal layer composed of collagen fibers, no cells, contributes to stability and strength of cornea

A

Bowmans membrane

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13
Q

Thickest layer of cornea

A

Stroma

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14
Q

Basement layer of the cornea

A

Dehcemet’s membrane

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15
Q

Blind spot of the eye

A

Optic disk

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16
Q

Area of highest visual acuity

17
Q

Long sebaceous gland in tarsal plate wc creates an oily layer on the surface of the tear film preventing rapid evaporation of the tear

A

Meibomian glands

18
Q

Sweat glands emptying secretions into hair follicles

A

Gland of moil

19
Q

Smaller,modified sebaceous glands conneted with hair follicles

A

Glands of Zeis

20
Q

Tear secreting tubuloalveolar gland rich lysozyme

A

Lacrmal gland

21
Q

Action of superior rectus

A

Upward and medial movement

22
Q

Action of inferior rectus

A

Downward and medial movement

23
Q

Movement of inferior oblique

A

Upward and lateral

24
Q

Movement of superior oblique

A

Downward and lateral

25
Position: defect in medial rectus
Abducted and depressed
26
Position: defect in superior rectus
Abducted and depressed
27
Position: defect in inferior rectus
Abducted and depressed
28
Position: defect in inferior oblique
Abducted and depressed
29
Position: defect in superior obique
Extorted
30
Position: defect in lateral rectus
Adducted
31
Internal strabismus is due to what?
Injury to abducens nerve
32
Located in the periaqueductal gray of the midbrain at the level of the SUPERIOR COLLICULUS
Oculomotor nucleus
33
Located on the ventral border of the periaqueductal gray of the midbrain at the level of the inferior colliculus
Trochlear nucleus
34
Located beneath the facial colliculus in the floor of the 4th ventricle and caudal pons
Abducent nucleus