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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which structure is found in the central region of a longitudinal section of the spinal cord?

Medullary pyramids

Cerebral cortex

Corpus callosum

Central canal

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Verified step by step guidance

Understand the anatomy of the spinal cord: The spinal cord is a cylindrical structure that runs through the vertebral column and is part of the central nervous system. It contains gray matter and white matter, as well as a central canal that runs longitudinally through its center.

Identify the central canal: The central canal is a small, cerebrospinal fluid-filled channel located in the middle of the spinal cord. It is surrounded by gray matter and plays a role in circulating cerebrospinal fluid.

Eliminate incorrect options: Medullary pyramids are structures found in the medulla oblongata of the brainstem, not the spinal cord. The cerebral cortex is the outer layer of the cerebrum in the brain, and the corpus callosum is a large bundle of nerve fibers connecting the two hemispheres of the brain. None of these are part of the spinal cord.

Focus on the correct structure: The central canal is the only structure listed that is found in the central region of a longitudinal section of the spinal cord.

Conclude the reasoning: Based on anatomical knowledge, the central canal is the correct answer because it is the structure located in the central region of the spinal cord in a longitudinal section.