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Hepatitis B > Sight > Flashcards

Sight Flashcards

1
Q

Is vision sensory or motor

A

Sensory

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2
Q

What cells are associated with sight

A

Lateral geniculate nucleus

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3
Q

What part of the brain is associated with sight

A

Thalamus

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4
Q

What is strabismus

A

When the eye do not align properly with each other when looking at an object

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5
Q

What is esotropia

A

One or both of the eyes turn inwards - cross eyed

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6
Q

What is exotropia

A

Where the eyes are deviated outwards

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7
Q

What is hypertropia

A

Misalignment of the eyes, one eye is higher than the other

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8
Q

What is amblyopia

A

Lazy eye

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9
Q

Muscle that innervates the upper eyelid

A

Levator palperbrae

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10
Q

What is blepharitis

A

Inflammation of the eyelids

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11
Q

What is ectropion

A

Lower eyelid sags or turns outwards

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12
Q

What is entropion

A

Lower eyelid turns inwards

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13
Q

What is a stye

A

Bacterial infection of the follicle of the eyelash

Tenderness, swelling

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14
Q

What is a chalazion

A

Most commonly found on the upper eyelid
Blockage of oil gland
Firm, painless lump

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15
Q

What is conjunctivitis

A

Inflammation or infection of the transparent membrane that lines your eyelid and covers your sclera

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16
Q

How much does the cornea account for of the total refractive index

A

2/3

17
Q

How many layers does the cornea have

A

5

Densely innervated by unmyelinated nerve endings -extremely sensitive to stimuli

18
Q

What is keratoconus

A

Non- inflammatory bilateral protrusion of the cornea

19
Q

What is the canal of schemm

A

Drainage of aqueous humor

20
Q

What is glaucoma

A

Faulty drainage of aqueous humor leading to a build up of pressure within the globe

21
Q

How much does the lens account for of the total refractive index

A

1/3

22
Q

What is cataract

A

Opacification (clouding) of the crystalline lens

Hepatitis B (39 decks)

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