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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which of the following correctly describes the pathway for transmission of visual information from the eye to the brain?

Cornea → Lens → Optic nerve → Thalamus → Visual cortex

Lens → Retina → Optic tract → Optic nerve → Visual cortex

Retina → Optic chiasm → Optic nerve → Thalamus → Visual cortex

Retina → Optic nerve → Optic chiasm → Optic tract → Thalamus → Visual cortex

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the eye and the structures involved in visual processing. The retina is the light-sensitive layer at the back of the eye where photoreceptor cells (rods and cones) convert light into neural signals.

Step 2: Neural signals from the retina are transmitted via the optic nerve. The optic nerve is a bundle of axons that carries visual information from the retina to the brain.

Step 3: At the optic chiasm, some fibers from the optic nerve cross over to the opposite side of the brain. This crossing allows visual information from each eye to be processed by both hemispheres of the brain.

Step 4: After the optic chiasm, the visual information continues through the optic tract, which carries signals to the thalamus. Specifically, the lateral geniculate nucleus (LGN) of the thalamus is responsible for relaying visual information.

Step 5: Finally, the thalamus sends the visual signals to the visual cortex in the occipital lobe of the brain, where the information is processed and interpreted to form images.