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

Which structure controls the tension of the suspensory ligaments of the lens?

Ciliary body

Cornea

Retina

Iris

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Verified step by step guidance

Understand the anatomy of the eye: The eye is composed of several structures, including the cornea, retina, iris, and ciliary body, each with specific functions.

Identify the function of the ciliary body: The ciliary body is a part of the eye that includes the ciliary muscle and ciliary processes. It plays a crucial role in controlling the shape of the lens.

Learn about suspensory ligaments: These ligaments, also known as zonular fibers, connect the ciliary body to the lens, allowing the ciliary muscle to adjust the lens's shape for focusing.

Explore the mechanism of accommodation: When the ciliary muscle contracts, it reduces tension on the suspensory ligaments, allowing the lens to become more rounded for near vision. When the muscle relaxes, the tension increases, flattening the lens for distant vision.

Conclude the role of the ciliary body: Based on its function in adjusting the tension of the suspensory ligaments, the ciliary body is the structure responsible for controlling the tension of these ligaments, affecting the lens's shape and focus.