Which type of muscle controls movements in the iris and ciliary body of the eye?

Question

Quizplus · Accepted Answer

Multiunit smooth muscle controls movements in the iris of the eye, causing the pupil to dilate or constrict in response to changes in light intensity. It also controls movements in the ciliary body, which affects the shape of the lens for focusing on objects at different distances. Simple smooth muscle is found in organs such as the digestive system and blood vessels, and involuntary striated muscle is found in the heart. Voluntary striated muscle is controlled consciously and is found in skeletal muscle.

Which Type of Muscle Controls Movements in the Iris and Ciliary