Questions: The cornea is: A. an extension of the sclera. B. avascular. C. an area of the eye that has rich sensory innervation. D. all is applicable. 32 of 75

The answer is D: all is applicable.

Explanation for each option:

A. an extension of the sclera.

• This is correct. The cornea is indeed a continuation of the sclera, the white part of the eye, and forms the transparent front part of the eye.

B. avascular.

• This is correct. The cornea is avascular, meaning it does not contain blood vessels. It receives nutrients through diffusion from the tear fluid and aqueous humor.

C. an area of the eye that has rich sensory innervation.

• This is correct. The cornea has a high density of nerve endings, making it one of the most sensitive tissues in the body.

Since all the statements A, B, and C are correct, the answer is D: all is applicable.