Anatomy and Function of the Eye

Katie Fleming, an explainer at the Exploratorium, conducts cow eye dissections to illustrate similarities and differences with human eyes. The video covers the anatomy and function of various eye parts, including muscles, cornea, iris, lens, retina, and optic nerve. It highlights the role of the aqueous and vitreous humor, the function of the iris and pupil in light regulation, and the unique tapetum in cow eyes. The dissection provides insights into how these components work together to enable vision.

Why are cow eyes used for dissections at the Exploratorium?

• They are easier to obtain.

• They are more colorful.

• They are similar to human eyes.

• They are cheaper than other animal eyes.

What is the primary function of the fat surrounding the cow's eye?

• To cushion the eye.

• To protect against infections.

• To help the eye move.

• To provide nutrients.

How many muscles does a cow's eye have to move it in different directions?

• Eight

• Two

• Four

• Six

What is the function of the cornea in the eye?

• To detect light.

• To provide nutrients.

• To bend light and protect the eye.

• To focus light.

What is the role of the aqueous humor in the eye?

• To provide nutrients and maintain eye shape.

• To focus light.

• To protect the retina.

• To detect light.

What part of the eye gives it its color?

• Cornea

• Iris

• Retina

• Lens

What is the function of the lens in the eye?

• To protect the retina.

• To detect light.

• To provide nutrients.

• To focus light.

What type of cells in the retina allow us to see color?

• Rod cells

• Cone cells

• Ganglion cells

• Bipolar cells

What is the blind spot in the eye?

• The center of the retina.

• The point where the optic nerve exits the eye.

• The area where the retina is wrinkled.

• The area with the most cone cells.

Why do cats' eyes appear to glow at night?

• They have more rod cells.

• Their eyes are larger.

• They have a tapetum that reflects light.

• Their pupils are larger.