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 layer of the eye contains photoreceptors known as rods and cones?

Sclera

Cornea

Retina

Choroid

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Verified step by step guidance

Understand the structure of the eye: The eye is composed of several layers, each with distinct functions. The main layers include the sclera, cornea, choroid, and retina.

Identify the function of each layer: The sclera is the white outer layer that provides protection. The cornea is the transparent front part that refracts light. The choroid contains blood vessels and provides nourishment. The retina is the innermost layer that contains photoreceptors.

Define photoreceptors: Photoreceptors are specialized cells in the retina that detect light. There are two main types: rods, which are responsible for vision in low light, and cones, which detect color and detail.

Locate photoreceptors: Photoreceptors, specifically rods and cones, are located in the retina. This layer is crucial for converting light into neural signals that the brain can interpret.

Conclude the identification: Based on the functions and locations of the eye's layers, the retina is the layer that contains the photoreceptors known as rods and cones.