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 these is not a type of photoreceptor?

Cones

Rods

Ganglion cells

Olfactory cells

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Verified step by step guidance

Understand the function of photoreceptors: Photoreceptors are specialized cells in the retina of the eye that respond to light. They are crucial for vision as they convert light into signals that can be interpreted by the brain.

Identify the types of photoreceptors: The two main types of photoreceptors in the human eye are rods and cones. Rods are responsible for vision in low light conditions, while cones are responsible for color vision and function best in bright light.

Examine the role of ganglion cells: Ganglion cells are not photoreceptors. They are neurons located in the retina that receive visual information from photoreceptors via intermediate bipolar cells and transmit it to the brain through the optic nerve.

Clarify the function of olfactory cells: Olfactory cells are sensory cells located in the nasal cavity responsible for detecting odors. They are part of the olfactory system, not the visual system, and thus are not involved in light detection.

Conclude which option is not a photoreceptor: Based on the functions and locations of the cells discussed, olfactory cells are not a type of photoreceptor as they are involved in the sense of smell, not vision.