The shape of the lens of the eye can be changed to allow focusing on certain objects at different distances from the head. The structure that produces this shape change is the ________.
A) eyelid muscle
B) ciliary body
C) extrinsic muscle
D) papillary muscle

Question

Quizplus · Accepted Answer

The ciliary body is a smooth muscle that surrounds the lens of the eye and is responsible for adjusting its shape to allow for focusing on objects at different distances. The other options listed (eyelid muscle, extrinsic muscle, papillary muscle) are not involved in the process of changing the shape of the lens for focusing.

The Shape of the Lens of the Eye Can Be