The

Part A

Match the terms in column A with the descriptions in column B. Place the letter of your choice in the space provided. Column A Column B

_ 1. posterior five-sixths of middle or vascular tunic

_ 2. white part of outer tunic

_ 3. transparent anterior portion of outer tunic

_ 4. inner lining of eyelid

_ 5. secretes tears

_ 6. empties into nasal cavity

_ 7. fills posterior cavity of eye

_ 8. area where optic nerve originates

_ 9. smooth muscle that controls light intensity

_ 10. fills anterior and posterior chambers of the anterior cavity of the eye

_ 11. contains visual receptors called rods and cones

_ 12. connects lens to ciliary body

_ 13. causes lens to change shape

_ 14. antibacterial agent in tears

Complete the following:

15. List the structures and fluids through which light passes as it travels from the cornea to the retina. _

a.

aqueous humor

b.

choroid coat

c.

ciliary muscle

d.

conjunctiva

e.

cornea

f.

iris

g.

lacrimal gland

h.

lysozyme

i.

nasolacrimal duct

j.

optic disk

k.

retina

l.

sclera

m.

suspensory ligament

n.

vitreous humor

16. List three ways in which rods and cones differ in structure or function.

Part B

Complete the following:

1. Which tunic/layer of the eye was the most difficult to cut? _

2. What kind of tissue do you think is responsible for this quality of toughness? _

3. How do you compare the shape of the pupil in the dissected eye with your own pupil?

4. Where do you find aqueous humor in the dissected eye?

5. What is the function of the dark pigment in the choroid coat?

6. Describe the lens of the dissected eye.

7. Describe the vitreous humor of the dissected eye.

Figure 35.10 Sections of the eye: (a) anterior portion (10x); (b) posterior portion (53x).

Figure 35.10 Sections of the eye: (a) anterior portion (10x); (b) posterior portion (53x).

Part C

Identify the features of the eye indicated in figure 35.10. a. Anterior portion of eye: 1. 2.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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Responses

  • johanna
    What kind of eye tissue do you think is responsible for he quality of toughness?
    4 years ago
  • kati
    How do you compare the shape of the pupil in the dissected eye with your own?
    4 years ago
  • aden
    Where do you find the aqueous humor in the dissected eye?
    3 years ago

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