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 nerve of the sacral plexus is the largest and longest nerve in the body?

Sciatic nerve

Pudendal nerve

Obturator nerve

Femoral nerve

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Verified step by step guidance

Step 1: Begin by understanding the sacral plexus, which is a network of nerves located in the pelvis. It provides motor and sensory innervation to the lower limbs and pelvic region.

Step 2: Recall that the largest and longest nerve in the human body is responsible for transmitting signals to and from the lower limbs, including the thigh, leg, and foot.

Step 3: Review the functions of the listed nerves: The sciatic nerve is the largest and longest nerve, extending from the sacral plexus down the posterior thigh and branching into the tibial and common fibular nerves. The pudendal nerve primarily serves the perineum. The obturator nerve innervates the medial thigh muscles. The femoral nerve serves the anterior thigh muscles.

Step 4: Compare the anatomical characteristics of the sciatic nerve with the other options. Note that the sciatic nerve's size and length make it unique among the listed nerves.

Step 5: Conclude that the sciatic nerve is the correct answer based on its anatomical significance and role in the sacral plexus.