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

12. The Central Nervous System

Introduction to the Central Nervous System

Anatomy & Physiology

12. The Central Nervous System

Introduction to the Central Nervous System

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Multiple Choice

Damage to which area of the spinal cord is most likely to result in paraplegia?

Sacral region

Lumbar region

Cervical region

Thoracic region

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Verified step by step guidance

Understand the term 'paraplegia': Paraplegia refers to paralysis affecting the lower half of the body, typically including both legs. This condition is caused by damage to the spinal cord below the cervical region.

Review the anatomy of the spinal cord: The spinal cord is divided into regions—cervical, thoracic, lumbar, sacral, and coccygeal. Each region corresponds to specific nerve functions and areas of the body.

Identify the thoracic region's role: The thoracic region of the spinal cord is located between the cervical and lumbar regions. It primarily controls motor and sensory functions for the trunk and lower limbs.

Understand the implications of thoracic damage: Damage to the thoracic region interrupts nerve signals traveling to the lower limbs, leading to paraplegia. This is because the thoracic region is responsible for transmitting signals to the lower body.

Compare with other regions: Damage to the cervical region typically results in quadriplegia (paralysis of all four limbs), while damage to the lumbar or sacral regions may cause partial paralysis or weakness but not complete paraplegia. This confirms the thoracic region as the most likely area to result in paraplegia.