Question

the point where optic nerves from each eye cross over to the opposite half of the brain is the optic _______
a. chiasm
b. disk
c. retina
d. cornea

please select the best answer from the choices provided

a
b
c
d

Explanation:

Identify the anatomical structure where optic nerves cross

The optic chiasm is an X-shaped structure formed by the crossing of the optic nerves in the brain, located immediately below the hypothalamus.

Evaluate the given options

• A. chiasm: This is the correct anatomical term for the crossing point of the optic nerves.
• B. disk: The optic disk is the point where the ganglion cell axons exit the eye, also known as the blind spot.
• C. retina: The retina is the light-sensitive layer of tissue at the back of the eyeball.
• D. cornea: The cornea is the transparent front part of the eye that covers the iris and pupil.

Answer:

• (A) chiasm (Correct answer)
• (B) disk
• (C) retina
• (D) cornea