Table of contents

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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

21. The Immune System

Introduction to Cell Communication

Anatomy & Physiology

21. The Immune System

Introduction to Cell Communication

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Multiple Choice

Which of the following best describes the communication process in cells?

Cells communicate by sending and receiving chemical signals.

Cells communicate through direct physical contact only.

Cells communicate by exchanging genetic material.

Cells communicate exclusively through electrical impulses.

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Verified step by step guidance

Understand that cell communication is a fundamental process in physiology, allowing cells to coordinate and respond to their environment.

Recognize that cells communicate through various mechanisms, including chemical signals, which are crucial for processes like hormone signaling and neurotransmission.

Consider the role of direct physical contact, such as gap junctions, which allow ions and small molecules to pass directly between adjacent cells.

Evaluate the exchange of genetic material, which is not a typical form of communication but occurs during processes like conjugation in bacteria.

Acknowledge that electrical impulses are primarily used in nerve cells for rapid communication, but are not the exclusive method of communication in all cells.