Name Date Penod Cow\'s Eye Dissection Lab Page 2 7. List the two functions of th
ID: 64217 • Letter: N
Question
Name Date Penod Cow's Eye Dissection Lab Page 2 7. List the two functions of the lens. 8. Describe the iris and explain its function. 9. Describe the pupil. 10. If you enter a very bright room after being in the dark, what would happen to your pupils -q or get smaller? G. Now it's time to examine the retina. If the vitreous humor is still in the eyeball, empty it out. On the inside of the back half of the eyeball, you can see some blood vessels that are part of a thin fleshy film. That film is the retina. Before you cut the eye open, the vitreous humor pushed a. b.Explanation / Answer
7. a. The cells of lens are filled with transparent proteins called “crystallins.” These are responsible for the clarity and focusing power of the lens.
b. Lens plyas a key role in occular accommodation. Accommodation is a reflex action, and it is the ability of the eye to focus lens for near vision. The ciliary body contains outer longitudinal and inner circular muscles called ciliary muscles. The suspensory ligament of lens is attached to the ciliary muscle. The contraction of the ciliary muscles focuses the lens for near vision, relaxation if these muscles. The normal accommodation of the eye is called, emmetropia.
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