Question

Choose the correct function of ciliary muscles.

• A. Carry signals to the brain
• B. Regulate the size of the pupil
• C. Cover and protect the cornea
• D. Change the shape of the lens

Answer 1

The correct option is D

Change the shape of the lens

The functions of the different parts of the eyes are as follows:

1. Optic nerve - carries signals to the brain.

2. Iris - regulates the size of the pupil to adjust the intensity of the light.

3. Ciliary Muscles - changes the shape of the lens.

4. Yellow spot or Macula - has abundant photoreceptors.

5. Vitreous chamber - contains vitreous humor.

6. Conjunctiva - covers and protects the cornea.