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

In the central nervous system, which nerve tracts do not decussate?

Dorsal column-medial lemniscal tracts

Corticospinal tracts

Ipsilateral tracts

Spinothalamic tracts

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Verified step by step guidance

Begin by understanding the concept of decussation, which refers to the crossing over of nerve fibers from one side of the central nervous system to the other.

Identify the nerve tracts mentioned in the problem: Dorsal column-medial lemniscal tracts, Corticospinal tracts, and Spinothalamic tracts.

Research the pathway of each tract to determine if they decussate. For example, the Dorsal column-medial lemniscal tracts decussate in the medulla, while the Corticospinal tracts decussate in the lower medulla.

Understand that ipsilateral tracts are those that do not decussate, meaning they remain on the same side of the central nervous system.

Conclude that the tracts which do not decussate are referred to as ipsilateral tracts, and verify this by checking the pathways of the mentioned tracts.