Question Detail

PHY 104 The Human Eye Objective Question

Question

In the process of accommodation, how does the ciliary muscle typically affect the crystalline lens to focus on closer objects?
Options
A It relaxes, causing the lens to flatten.
B It contracts, causing the lens to bulge.
Correct Answer
C It relaxes, causing the lens to bulge.
D It contracts, causing the lens to flatten.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document states, "In order to form a sharp image of closer objects on the retina, the tension in the ciliary muscle increases and it contracts, causing the lens to bulge and its radius of curvature to change."

Hint

Consider the state of the ciliary muscle and the resulting lens shape for near vision.

Question Info