Final Exam Eye

Question 1

Bony socket of the skull where eye sits?

Answer 1

Orbit

Question 2

What are the 3 layer of the eye?

Answer 2

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

Question 3

What is the adnexa?

Answer 3

Accesory ocular structures

Question 4

What are the 3 adnexa of the eye?

Answer 4

1. palpebrae
2. third eyelid and conjunctiva
3. lacrimal apparatus

Question 5

What are the 3 components of the fibrous tunic?

Answer 5

1. sclera
2. cornea
3. limbus

Question 6

What are the 3 components of the vascular tunic?

Answer 6

1. iris
2. ciliary body
3. choroid

Question 7

What are the 2 layers of the retina?

Answer 7

1. pigmented layer

2. neural layer

Question 8

What is another name for the retinal tunic?

Answer 8

Neuroepithelial tunic

Question 9

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

Answer 9

Sclera

Question 10

What are the 3 functions of the sclera

Answer 10

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

Question 11

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

Answer 11

Cornea

Question 12

What are the 5 layers of the cornea

Answer 12

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

Question 13

What are the 4 factors that contribute to corneal transparency?

Answer 13

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

Question 14

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

Answer 14

Limbus

Question 15

Pigmented loose connective tissue of the iris?

Answer 15

Stroma

Question 16

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

Answer 16

Iridocorneal angle

Question 17

What is the iridocorneal angle composed of?

Answer 17

1. pectinate lig.
2. trabecular meshwork
3. trabecular veins

Question 18

Anterior expansion of the choroid at the level of the lens

Answer 18

ciliary body

Question 19

describe the drainage pathway of aqueous humor

Answer 19

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

Question 20

Nutritional source for retina

Answer 20

Choroid

Question 21

What is the function of the tapetum lucidum?

Answer 21

Inc. light perception under conditions of poor illumination

Question 22

What are the 3 parts of the retina?

Answer 22

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

Question 23

What is the pigment found in rods?

Answer 23

rhodospsin

Question 24

What is the pigment found in cones?

Answer 24

iodopsin

Question 25

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

Answer 25

vitreous body

Question 26

sebaceous glands located outside the eye?

Answer 26

tarsal (meibomian) glands

Question 27

What are the 3 portions of tear film?

Answer 27

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