Grade 9 Eye Anatomy Worksheet

Grade 9 Eye Anatomy Worksheet

Read each question carefully and answer to the best of your ability. Refer to the diagram of the human eye when necessary.

Human Eye Cross Section

1. Which part of the eye is responsible for controlling the amount of light entering the eye?

2. The transparent outer layer that protects the front of the eye is called the:

3. The   is the light-sensitive layer at the back of the eye that contains photoreceptor cells.

4. The   is a clear, flexible structure that focuses light onto the retina.

5. The optic nerve transmits visual information from the   to the brain.

6. Describe the function of the pupil and how it changes in different light conditions.

7. Explain the difference between rods and cones in the retina.

8. The sclera is commonly known as the 'white of the eye'.

9. The vitreous humor is a watery fluid that fills the front chamber of the eye.

Match each part of the eye with its correct function.