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Ocular Anatomy and Physiology : > Anatomy Of The Globe > Flashcards

Anatomy Of The Globe Flashcards

1
Q

Anterior Segment

A 
Cornea 
Conjunctva
Sclera 
Cilliary Body 
Trabescular Meshwork
Iris
 Lens
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2
Q

Cornea

A

Outermost layer of Lens
With Lens and Aqueous Humour
Focuses light into the Retina

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3
Q

Layers of the Cornea

A 
Epithelium 
Bowman's Layer 
Stroma 
Descemet's Layer 
Endothelium
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4
Q

Conjunctiva
Bulbar
Palpebrae

A

Thin transparent membrane
Covers anterior surface of the Sclera
Covers inner eyelid

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5
Q

Sclera

A

Maintains Eye Shape
Protects internal structure
“White Part”
Tough

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6
Q

Cilliary Body

A

Controls the lens
Accommodation
Production of Aqueous Humour
Anchors the Zonules

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7
Q

Lens

A

Changes shape to focus light rays onto Retina
65% Water
Flexible for young people

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8
Q

Layers of the Lens

A

Nucleus
Cortex
Capsule

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9
Q

Posterior Segment

A 
Vitreous Humour
Retina
Choroid
Sclera
Uveal Tract
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10
Q

Vitreous Humour

A

Mostly Water
Cloquet’s Canal
Fills space behind the lens

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11
Q

Retina

A

Contains photoreceptors : Rods and Cones

Converts images formed by the lens into signals to send to the brain

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12
Q

Layers of the Retina

Start From The Inner Aspect

A 
Internal Limiting Membrane 
Nerve Fiber Layer
Ganglion Cell Layer 
Inner Plexiform Layer 
Inner Nuclear Layer
Outer Plexiform Layer 
Outer Nuclear Layer
External Limiting Membrane
Rods and Cones 
Retinal Pigment Epithelium 
Bruch's Membrane
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13
Q

Retinal Blood Supply

A

Choriocappillaries

Central Retinal Artery Branch

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14
Q

What Are The Functions Of Retinal Pigment Epithelium (RPE)

A
  • Melanin absorbs stray light
  • Transport of metabolites
  • Barrier to protect photoreceptors
  • Regeneration of visual pigment
  • Phagocytosis and Photoreceptor tips
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15
Q

What makes up the UVEAL TRACT

A

Iris
Cilliary Body
Choroid

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16
Q

Visual Pathway

A 
Cornea 
Anterior Chamber 
Aqueous Humour 
Pupil 
Iris
Lens 
Vitreous Chamber
Retina : Macula, Fovea
Optic Nerve

Ocular Anatomy and Physiology : (30 decks)

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