Table of contents

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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

Which of the following statements about the cornea is true?

The cornea is a flexible structure that changes shape to focus light.

The cornea is responsible for most of the eye's refractive power.

The cornea is located behind the iris and pupil.

The cornea is the only part of the eye that contains blood vessels.

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Verified step by step guidance

Understand the anatomy of the eye: The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber.

Recognize the function of the cornea: It is responsible for most of the eye's refractive power, meaning it helps to bend light rays to focus them on the retina.

Clarify the structure of the cornea: Unlike the lens, the cornea is not flexible and does not change shape to focus light. It remains a fixed shape.

Identify the location of the cornea: The cornea is located at the front of the eye, not behind the iris and pupil.

Note the vascularity of the cornea: The cornea is avascular, meaning it does not contain blood vessels, which is why it appears clear and transparent.