Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

15. The Special Senses

Structure of the Eyeball

Anatomy & Physiology

15. The Special Senses

Structure of the Eyeball

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Multiple Choice

What structure functions to keep the retina in place and helps to maintain the shape of the eyeball?

Vitreous humor

Lens

Aqueous humor

Cornea

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Verified step by step guidance

Understand the anatomy of the eye: The eye is composed of several structures, each with specific functions. Key structures include the cornea, lens, aqueous humor, vitreous humor, and retina.

Identify the function of the vitreous humor: The vitreous humor is a clear gel that fills the space between the lens and the retina. It helps maintain the shape of the eyeball and keeps the retina in place by exerting pressure against it.

Differentiate between the aqueous humor and vitreous humor: The aqueous humor is a watery fluid found in the anterior chamber of the eye, between the cornea and the lens. It helps maintain intraocular pressure but does not directly support the retina.

Consider the role of the lens: The lens is a transparent structure that focuses light onto the retina. It does not contribute to maintaining the shape of the eyeball or holding the retina in place.

Evaluate the function of the cornea: The cornea is the eye's outermost layer and helps focus light. It does not play a role in maintaining the shape of the eyeball or supporting the retina.