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 sequence follows the correct passage of light entering the cornea?

cornea, lens, posterior segment, anterior segment, pupil

cornea, pupil, posterior segment, lens, anterior segment

cornea, lens, anterior segment, posterior segment, lens

cornea, pupil, anterior segment, posterior segment, lens

cornea, anterior segment, pupil, lens, posterior segment

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Verified step by step guidance

Identify the structures involved in the passage of light through the eye: cornea, anterior segment, pupil, lens, and posterior segment.

Understand the function of each structure: the cornea refracts light, the anterior segment contains aqueous humor, the pupil regulates light entry, the lens focuses light, and the posterior segment contains the vitreous humor.

Determine the initial point of light entry: light first enters through the cornea, which is the eye's outermost layer.

Trace the path of light through the eye: after the cornea, light passes through the anterior segment, then through the pupil, which is the opening in the iris.

Continue tracing the path: light then passes through the lens, which focuses it onto the retina, and finally through the posterior segment, which maintains the eye's shape and allows light to reach the retina.