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

4. Tissues & Histology

Introduction to Nervous Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Nervous Tissue

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following structures are primarily composed of gray matter?

Optic nerve

Spinal cord tracts

Corpus callosum

Cerebral cortex

Previous problemNext problem

Verified step by step guidance

Understand the composition of gray matter: Gray matter primarily consists of neuronal cell bodies, dendrites, and unmyelinated axons, as opposed to white matter, which is mainly composed of myelinated axons.

Identify the structures listed in the problem: Optic nerve, Spinal cord tracts, Corpus callosum, and Cerebral cortex.

Analyze each structure: The optic nerve is composed of myelinated axons, making it primarily white matter. Spinal cord tracts are also composed of myelinated axons, classifying them as white matter. The corpus callosum is a large bundle of myelinated fibers connecting the two cerebral hemispheres, thus it is white matter.

Focus on the cerebral cortex: The cerebral cortex is the outer layer of the brain and is primarily composed of gray matter, containing neuronal cell bodies and dendrites.

Conclude that the cerebral cortex is the structure primarily composed of gray matter, as it fits the characteristics of gray matter more than the other options provided.