COT Ocular Anatomy and Physiology

Question 1

Which layer of the cornea is responsible for maintaining corneal deturgescence through its pump function?

Accepted Answer

Endothelium

Answer

Bowman's layer

Answer

Stroma

Answer

Descemet's membrane

Question 2

The fovea centralis, responsible for the sharpest central vision, is located in which retinal structure?

Accepted Answer

Macula lutea

Answer

Optic disc

Answer

Ora serrata

Answer

Peripheral retina

Question 3

Aqueous humor is produced by which structure of the eye?

Accepted Answer

Ciliary body

Answer

Choroid

Answer

Iris

Answer

Trabecular meshwork

Question 4

Which cranial nerve innervates the lateral rectus muscle?

Accepted Answer

CN VI

Answer

CN III

Answer

CN IV

Answer

CN VII

Question 5

The optic nerve head (optic disc) is located approximately how many degrees nasal to the fovea?

Accepted Answer

15 degrees

Answer

5 degrees

Answer

10 degrees

Answer

25 degrees

Question 6

Which photoreceptor type is primarily responsible for color vision and functions best in photopic (bright light) conditions?

Accepted Answer

Cones

Answer

Rods

Answer

Retinal ganglion cells

Answer

Bipolar cells