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

Rods, Cones, and Light

Anatomy & Physiology

15. The Special Senses

Rods, Cones, and Light

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Multiple Choice

Color vision is best in which part of the retina?

Optic disc

Macula lutea

Peripheral retina

Fovea centralis

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Verified step by step guidance

Understand the anatomy of the retina: The retina is the light-sensitive layer at the back of the eye, containing photoreceptor cells that detect light and color.

Identify the key regions of the retina: The retina includes the optic disc, macula lutea, peripheral retina, and fovea centralis. Each region has specific functions and characteristics.

Focus on the fovea centralis: The fovea centralis is a small pit located in the center of the macula lutea. It is densely packed with cone cells, which are responsible for color vision and high visual acuity.

Compare the fovea centralis with other regions: The optic disc lacks photoreceptors, making it a blind spot. The peripheral retina has more rod cells, which are better for low-light vision but not color vision. The macula lutea surrounds the fovea and supports detailed vision but is less specialized than the fovea.

Conclude why color vision is best in the fovea centralis: Due to the high concentration of cone cells, the fovea centralis provides the sharpest and most detailed color vision, making it the optimal region for perceiving colors.