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 of the following structures is part of the innermost layer of the wall of the eye?

Cornea

Retina

Sclera

Choroid

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Verified step by step guidance

Step 1: Understand the anatomy of the eye wall, which consists of three layers: the outer layer (sclera and cornea), the middle layer (choroid, ciliary body, and iris), and the innermost layer (retina).

Step 2: Recall that the retina is the innermost layer of the eye wall and is responsible for receiving light and converting it into neural signals for vision.

Step 3: Differentiate the other options: the cornea is part of the outer layer, the sclera is also part of the outer layer, and the choroid is part of the middle layer.

Step 4: Confirm that the retina is the correct answer because it is the only structure listed that belongs to the innermost layer of the eye wall.

Step 5: Review the function of the retina to solidify understanding: it contains photoreceptor cells (rods and cones) that detect light and color, playing a crucial role in vision.