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

Through which region of the spinal cord do the nerves that innervate the lower limbs enter and exit?

Cervical region

Coccygeal region

Thoracic region

Lumbar and sacral regions

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Verified step by step guidance

Understand that the spinal cord is divided into regions: cervical, thoracic, lumbar, sacral, and coccygeal. Each region corresponds to specific nerve roots that innervate different parts of the body.

Recall that the lower limbs are primarily innervated by nerves originating from the lumbar and sacral regions of the spinal cord. These regions form the lumbosacral plexus, which is responsible for motor and sensory functions in the lower limbs.

Eliminate the incorrect options: The cervical region innervates the upper limbs and neck, the thoracic region innervates the chest and abdominal muscles, and the coccygeal region is associated with the pelvic area but does not primarily innervate the lower limbs.

Focus on the lumbar and sacral regions, which contain nerve roots such as the femoral nerve, sciatic nerve, and others that control movement and sensation in the lower limbs.

Conclude that the nerves entering and exiting the spinal cord to innervate the lower limbs are located in the lumbar and sacral regions.