Eyeball anatomy

Question 1

The sclera may be divided, for purposes of description, into three layers:

Answer 1

1) the episclera, 2) the scleral stroma, and 3) the lamina fusca.

Question 2

The eyeball consists of three layers , which from without inward are:

Answer 2

l) the fibrous layer, 2) the vascular pigmented layer, and 3) the nervous layer.

Question 3

Blood Supply of The sclera?

Answer 3

Anterior ciliary arteries + long and short posterior ciliary arteries

Question 4

Nerve Supply of The sclera?

Answer 4

ciliary nerves

The many short ciliary nerves supply the posterior portion, while the two long ciliary nerves supply the anterior region.

Question 5

where is the sclera the thinnest

Answer 5

just behind the insertions of the

recti muscles.

Question 6

aqueous humor has a refractive index of

Answer 6

1.33

Question 7

Microscopically, the cornea consists of five layers From front to back, they are:

Answer 7

1) the epithelium, 2) Bowman’s layer (membrane), 3) the substantia propria, 4) Descemet’s membrane, and 5) the endothelium.