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A&P I > Vision > Flashcards

Vision Flashcards

1
Q

Electromagnetic spectrum

A

Humans see visible light 400-700nm WL
Vis light is ROYGBIV
Gamma rays-X-rays-UV-vis-infrared rays-micro waves- radio waves

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2
Q

Lacrimal gland

A

Sup. Lat. drain thru nasolacrimal duct
Tears: water salt mucus
Lysozyme-antibacterial
IgA-antibodies

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3
Q

Lateral rectus

A

CN VI
Abducens

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4
Q

Medial rectus

A

Cross eyed
CN III oculomotor

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5
Q

Superior rectus

A

Elevates
CN III oculomotor

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6
Q

Inferior rectus

A

Look down
CN III Oculomotor

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7
Q

Inferior oblique

A

Elevate + lat turn
CN III oculomotor

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8
Q

Superior oblique

A

Look down + lat turn
CN IV trochlear

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9
Q

Fibrous tunic

A

Out
Sclera
Cornea

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10
Q

Cornea

A

Bends light
Light pass
Reduce UV
transparent

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11
Q

Sclera

A

White of eye
CT
Shape
Protect

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12
Q

Vascular tunic

A

Middle layer
Choroid
Ciliary body
Iris
Pupil

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13
Q

Choroid

A

Many blood vessels
Melanin to reduce light scatter

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14
Q

Ciliary body

A

Produce aqueous humor in anterior chamber

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15
Q

Suspensory ligaments

A

Focus eye
Connect lens to ciliary process

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16
Q

Intrinsic eye muscles

A

Ciliary muscles
Radial muscles - outer dialate pupil- sym
Circular muscles - constrict pupil- psym

17
Q

Iris

A

Color
Regulates light entering pupil
Radial and circular muscles

18
Q

Inner eye tunic

A

Lens
Anterior chamber
Vitreous chamber
Retna
Neural layer

19
Q

Lens

A

Clear
Crystallin proteins
Long thin no organelle cells let light
Gap junctions

20
Q

Anterior chamber

A

Aqueous humor
Watery
Eye shape
Circulation

21
Q

Vitreous chamber

A

Thick
Keeps Retna against choroid

22
Q

Retna

A

Where light-nervous impulse-brain
Pigmented layer-melanin

23
Q

Neural layer

A

Neural cells before optic nerve sends
Rods/cones photoreceptors
Rhodopsin- bleaching to AP, protein, vA
Central fovea
Optic disc

24
Q

Rods

A

Dim light
B&W
120 mil per eye
Peripheral

25
Q

Cones

A

Center eye
Color
6 mil per eye
16% blue cones
10% green cones
74% red cones

26
Q

Central fovea

A

Macula lutea
Mid eye
Lots of cones

27
Q

Optic disc

A

Blind spot
No rods or cones

28
Q

Farsighted
Too tall eye
Convex lens correction

A

Hyperopia

29
Q

Nearsighted
Too squished eye
Concave lens

A

Myopia

30
Q

Loss of lens elasticity
Ciliary musc struggle

A

Presbyopia

A&P I (9 decks)

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