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

Which of the following structures is the outermost connective tissue layer surrounding an entire peripheral nerve?

Epineurium

Endoneurium

Myelin sheath

Perineurium

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Verified step by step guidance

Understand the anatomy of a peripheral nerve: Peripheral nerves are composed of bundles of axons (nerve fibers) that are organized into fascicles and surrounded by connective tissue layers for protection and support.

Learn the three connective tissue layers: The endoneurium surrounds individual axons, the perineurium surrounds bundles of axons (fascicles), and the epineurium is the outermost layer that encloses the entire nerve.

Differentiate the myelin sheath: The myelin sheath is not a connective tissue layer but rather a fatty insulating layer produced by Schwann cells that wraps around individual axons to enhance signal conduction.

Identify the outermost layer: Based on the definitions, the epineurium is the connective tissue layer that surrounds the entire peripheral nerve, making it the correct answer.

Review the options and confirm: Compare the definitions of epineurium, endoneurium, myelin sheath, and perineurium to ensure the correct choice is selected as the outermost layer.