Final Exam Eye Flashcards

1
Q

Bony socket of the skull where eye sits?

A

Orbit

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2
Q

What are the 3 layer of the eye?

A
  1. Outer fibrous tunic
  2. Middle Vascular tunic
  3. inner retinal tunic
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3
Q

What is the adnexa?

A

Accesory ocular structures

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4
Q

What are the 3 adnexa of the eye?

A
  1. palpebrae
  2. third eyelid and conjunctiva
  3. lacrimal apparatus
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5
Q

What are the 3 components of the fibrous tunic?

A
  1. sclera
  2. cornea
  3. limbus
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6
Q

What are the 3 components of the vascular tunic?

A
  1. iris
  2. ciliary body
  3. choroid
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7
Q

What are the 2 layers of the retina?

A
  1. pigmented layer

2. neural layer

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8
Q

What is another name for the retinal tunic?

A

Neuroepithelial tunic

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9
Q

The posterior portion of the eye, white opaque layer of dense irregular CT.

A

Sclera

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10
Q

What are the 3 functions of the sclera

A
  1. protects eye
  2. maintains shape
  3. insertion pts. for tendons
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11
Q

Anterior portion of the eye, avascular, transparent, convex-concave lens

A

Cornea

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12
Q

What are the 5 layers of the cornea

A
  1. corneal epithelium
  2. limiting lamina
  3. subtantia propria
  4. descemet’s memb.
  5. posterior epithelium
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13
Q

What are the 4 factors that contribute to corneal transparency?

A
  1. avascular
  2. collagen arrangement
  3. proteoglycans
  4. Na+ pumps
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14
Q

The corneoscleral junction, where the transparent cornea merges wwith the vacular sclera

A

Limbus

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15
Q

Pigmented loose connective tissue of the iris?

A

Stroma

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16
Q

At the convergence of corneoscleral junction (limbus), ciliary body, and iris

A

Iridocorneal angle

17
Q

What is the iridocorneal angle composed of?

A
  1. pectinate lig.
  2. trabecular meshwork
  3. trabecular veins
18
Q

Anterior expansion of the choroid at the level of the lens

A

ciliary body

19
Q

describe the drainage pathway of aqueous humor

A

Posterior chamber –> Through pupil –> Anterior chamber –> Iridocorneal angle –> Past pectinate lig. –> Scleral venous plexus

20
Q

Nutritional source for retina

A

Choroid

21
Q

What is the function of the tapetum lucidum?

A

Inc. light perception under conditions of poor illumination

22
Q

What are the 3 parts of the retina?

A
  1. Sensory/ optical
  2. non-sensory/ ciliary
  3. Non-sensory/ iridal
23
Q

What is the pigment found in rods?

A

rhodospsin

24
Q

What is the pigment found in cones?

A

iodopsin

25
Q

occupies the space b/t lens and retina, aids in maintaining shape, and retinal apposition

A

vitreous body

26
Q

sebaceous glands located outside the eye?

A

tarsal (meibomian) glands

27
Q

What are the 3 portions of tear film?

A
  1. oily (meibomian)
  2. aqueous (Lacrimal)
  3. mucous (goblet)