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

Which of the following is true about rods and cones in the human eye?

Cones are concentrated in the fovea and are responsible for color vision.

Rods are responsible for color vision, while cones are more sensitive to low light.

Rods are concentrated in the fovea and are responsible for detecting fine detail.

Cones are more sensitive to low light conditions than rods.

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Verified step by step guidance

Understand the basic functions of rods and cones: Rods are photoreceptor cells in the retina that are highly sensitive to low light levels and are primarily responsible for night vision. Cones, on the other hand, are responsible for color vision and function best in bright light conditions.

Identify the location of rods and cones in the retina: Cones are concentrated in the fovea, a small central pit in the retina that is responsible for sharp central vision. Rods are more numerous in the peripheral regions of the retina.

Analyze the statement about cones being responsible for color vision: Cones contain photopigments that are sensitive to different wavelengths of light, allowing them to detect colors. This is why cones are crucial for color vision.

Evaluate the statement about rods being more sensitive to low light: Rods contain a photopigment called rhodopsin, which is highly sensitive to light, making them more effective in dim lighting conditions compared to cones.

Conclude by matching the correct statement with the known facts: The statement 'Cones are concentrated in the fovea and are responsible for color vision' aligns with the known functions and locations of rods and cones in the human eye.