The Human Eye: Structure and Function
This worksheet covers the structure and function of the human eye, including its various parts and how they contribute to vision.
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The Human Eye: Structure and Function
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Read each question carefully and answer to the best of your ability. Refer to the provided diagram if necessary.
Observe the diagram of the human eye below and answer the questions that follow.
1. Label the following parts on the diagram:
a. Cornea:
b. Pupil:
c. Iris:
d. Lens:
e. Retina:
f. Optic Nerve:
2. Which part of the eye is responsible for controlling the amount of light entering the eye?
Cornea
Lens
Iris
Retina
3. Which cells in the retina are responsible for color vision?
Rods
Cones
Ganglion cells
Bipolar cells
4. The transparent outer layer of the eye that helps to focus light is the .
5. The is the light-sensitive layer at the back of the eye that contains photoreceptors.
6. The process by which the eye changes its focus to see objects at different distances is called .
7. Describe the function of the lens in the human eye. How does it contribute to clear vision?
8. Explain the difference between rods and cones in terms of their function and location in the retina.
9. The optic nerve transmits electrical signals from the eye to the brain.
True
False
10. The pupil is a muscle that contracts and dilates to control light entry.
True
False
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