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Ocular Anatomy & Physiology > Accessory Structures > Flashcards

Accessory Structures Flashcards

1
Q

Tear Film layers (outer to inner)

A

Lipid - Aqueous - Mucin

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2
Q

Thickest layer of tear film

A

Aqueous Layer

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3
Q

Thinnest layer of tear film

A

Lipid Layer

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4
Q

What direction is the afferent pathway

A

From Eye to brain

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5
Q

What direction is the efferent pathway

A

From brain to both eyes

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6
Q

Visual Pigment in Daylight (Photopic) vision

A

Photopsin

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7
Q

Visual pigment in night (scotopic) vision

A

Rhodopsin

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8
Q

What is Monochromacy

A

No colour discrimination, either 1 cone opsin or only rods

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9
Q

What is Protonopia

A

Missing red cone opsin

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10
Q

What is Deutropia

A

Missing green opsin

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11
Q

What is Tritanopia

A

Missing blue opsin

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12
Q

What is Anomalous Trichromacy

A

One of the cone opsins is faulty but still partially functional

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13
Q

What is Protanomoly

A

Faulty red opsin

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14
Q

What is Deutranomoly

A

Faulty green opsin

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15
Q

What is Tritanomoly

A

Faulty blue opsin

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16
Q

Ocular artery pathway

A

Internal carotid - Ophthalmic artery - Central renal artery (supplies inner artery) - Terminal Branches

17
Q

Inferior ocular vein pathway

A

Inferior vortex - inferior ophthalmic - cavernous sinus - jugular

18
Q

Superior Ocular vein pathway

A

Superior vortex - central lacrimal - lacrimal - superior ophthalmic - cavernous sinus - jugular

19
Q

Pathway of light

A

Cornea - anterior chamber - pupil ( size controlled by iris) - lens - vitreous chamber - retina (macula, fovea) - optic nerve

20
Q

Layers of the cornea (outside to inside)

A

Epithelium - Bowman’s membrane - stroma (thickest layer) - Descemet’s membrane - Endothelium

Ocular Anatomy & Physiology (7 decks)

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