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

What is Anatomy & Physiology?

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

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Multiple Choice

White matter consists of __ and gray matter consists of _.

neuron cell bodies; myelinated axons

myelinated axons; neuron cell bodies

unmyelinated axons; dendrites

dendrites; unmyelinated axons

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Verified step by step guidance

Step 1: Begin by understanding the structural and functional differences between white matter and gray matter in the nervous system. White matter primarily consists of myelinated axons, which are responsible for transmitting signals over long distances. Gray matter, on the other hand, is composed mainly of neuron cell bodies, dendrites, and unmyelinated axons, which are involved in processing and integrating information.

Step 2: Review the anatomy of the central nervous system (CNS). White matter is typically found in deeper regions of the brain and spinal cord, while gray matter is located on the surface of the brain (cortex) and in specific areas such as the basal ganglia and spinal cord horns.

Step 3: Analyze the options provided in the question. The correct pairing should reflect the composition of white matter (myelinated axons) and gray matter (neuron cell bodies). Eliminate options that do not align with the anatomical and physiological characteristics of these structures.

Step 4: Recall the role of myelin in white matter. Myelin is a fatty substance that insulates axons, allowing for faster signal transmission. This is a key feature distinguishing white matter from gray matter, which lacks significant myelination.

Step 5: Confirm the correct answer by matching the descriptions to the appropriate terms. White matter consists of myelinated axons, and gray matter consists of neuron cell bodies, dendrites, and unmyelinated axons. This aligns with the correct answer provided in the question.