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

Which of the following correctly describes the location of white and gray matter in the spinal cord?

Both white and gray matter are evenly mixed throughout the spinal cord.

Gray matter is found only on the outer surface of the spinal cord.

White matter is located centrally, surrounded by gray matter.

Gray matter is located centrally, surrounded by white matter.

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Verified step by step guidance

Step 1: Begin by understanding the basic structure of the spinal cord. The spinal cord is composed of two types of tissue: gray matter and white matter, which differ in their composition and function.

Step 2: Gray matter primarily consists of neuron cell bodies, dendrites, and unmyelinated axons. It is responsible for processing and integrating information. In the spinal cord, gray matter is organized into a butterfly-shaped structure located centrally.

Step 3: White matter is composed of myelinated axons that form tracts for transmitting signals to and from the brain and other parts of the body. It surrounds the central gray matter in the spinal cord.

Step 4: Visualize the cross-sectional anatomy of the spinal cord. The central gray matter forms an 'H' or butterfly shape, while the white matter encases it, forming the outer layer.

Step 5: Based on this anatomical organization, the correct description is: 'Gray matter is located centrally, surrounded by white matter.' This arrangement allows the spinal cord to efficiently process and transmit neural signals.