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

13. The Peripheral Nervous System

Introduction to the Peripheral Nervous System

Anatomy & Physiology

13. The Peripheral Nervous System

Introduction to the Peripheral Nervous System

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Multiple Choice

Most sensory afferent pain fibers enter the spinal cord by way of the ________ nerve roots.

dorsal

lateral

ventral

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Verified step by step guidance

Understand the anatomy of the spinal cord: The spinal cord is divided into regions, and nerve roots are categorized as dorsal (posterior) and ventral (anterior). These roots are responsible for transmitting different types of signals.

Recall the function of dorsal nerve roots: Dorsal nerve roots are primarily responsible for carrying sensory information, including pain signals, from the peripheral nervous system to the central nervous system.

Contrast dorsal and ventral nerve roots: Ventral nerve roots are involved in motor function, transmitting signals from the central nervous system to muscles, while dorsal nerve roots handle sensory input.

Identify the pathway of pain signals: Pain signals, as part of sensory afferent fibers, travel through the dorsal nerve roots to enter the spinal cord.

Select the correct answer based on the function: Since sensory afferent pain fibers are associated with sensory input, they enter the spinal cord via the dorsal nerve roots.