Question

The voluntary muscles control the movement of iris of eye.

• A. True
• B. False

Answer 1

The correct option is B False

Voluntary muscles

1. These muscles are under the control of the animal's conscious effort.
2. These can be moved according to animal will.
3. For example muscles of the hands and legs.

Iris

1. Light enters the eye through an opening in the center of the eye called a pupil.
2. Iris is that part of the eye that contains the muscles for regulating the diameter of the pupil.
3. When the eye is exposed to a very bright light then the diameter of the pupil decreases due to the action of the muscles of the iris.
4. When a person is in dark, then the diameter of the pupil of the eye increases to allow more amount of light into it.
5. Muscles of the iris are involuntary and under the control of the nervous system.

Final answer:

The given statement is false.