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 are the two main branches of a spinal nerve?

Dorsal and ventral rami

Cranial and caudal nerves

Anterior and posterior roots

Somatic and autonomic nerves

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Verified step by step guidance

Understand the structure of a spinal nerve: A spinal nerve is formed by the merging of two roots, the anterior (ventral) root and the posterior (dorsal) root, which carry motor and sensory information respectively.

Learn about the branches of a spinal nerve: After the spinal nerve exits the intervertebral foramen, it divides into two main branches called the dorsal ramus and ventral ramus.

Clarify the function of the dorsal ramus: The dorsal ramus innervates the muscles and skin of the posterior part of the body (back).

Clarify the function of the ventral ramus: The ventral ramus innervates the muscles and skin of the anterior and lateral parts of the body, as well as the limbs.

Compare the options provided: The correct answer is 'Dorsal and ventral rami,' as these are the two main branches of a spinal nerve. The other options refer to different anatomical structures or classifications that are not directly related to the branching of spinal nerves.