Name:
Period:
Date:
Cow Eye Dissection
Directions: You and your group will complete this worksheet at you are doing the cow eye
dissection. Complete it and turn it into your teacher once you are done.
1. Write down three observations you made when you examined the surface of the
eye:
a. ______________________________
b. ______________________________
c. ______________________________
2.
Name the three layers you sliced through when you cut across the top of the eye:
a. ______________________________
b. ______________________________
c. ______________________________
3. Identify the parts by writing their definitions:
a. corneab. blind spotc. sclera4. Complete the chart by matching the following parts to their eye functions.
EYE PARTS: retina, pupil, optic nerve, aqueous humor, iris, lens, vitreous humor, tapetum
Eye Parts
Functions
Layer of light-sensitive cells at the back of the eye. Detects images
focused by cornea and the lens. Connected to brain by optic nerve.
Colorful shiny material behind retina. Animals with good night vision
have it.
Thick, clear jelly helps give eyeball its shape.
Clear fluid helps cornea keep round shape.
Gives color for eye. Blue, brown, green and grey colors and
changes shape to focus objects.
Hole that lets light into inner eye.
Nerve fibers that carry information from retina to the brain.
Clear, flexible structure, convex shaped and makes image for eye.
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Name:
Period:
Date:
5. Use the picture below to identify the parts of the eye. DO YOUR BEST!
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Reflecting questions:
1. What did you learn about the eye that you did not know before?
2. What process does your eye go through in order for you to see objects? Explain your answer.
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