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

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 is a form of cell communication that may be used during an immune response?

Cells infected with a virus sending signals to prepare neighboring cells for viral infection.

Electrical signals traveling between the cells of the heart to cause heart muscle contractions.

Growth hormones signaling to the cells to increase tissue growth.

Stress hormones triggering the “fight or flight” response in the body.

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Verified step by step guidance

Understand that cell communication is a process where cells send and receive signals to coordinate actions and responses.

Identify the context of the problem: an immune response, which involves the body's defense mechanisms against pathogens like viruses.

Recognize that during an immune response, cells need to communicate to alert neighboring cells of potential threats, such as viral infections.

Consider the option where cells infected with a virus send signals to prepare neighboring cells for viral infection. This is a form of paracrine signaling, where cells release signaling molecules to nearby cells to initiate a protective response.

Conclude that this form of communication is crucial in an immune response, as it helps to limit the spread of the virus by preparing neighboring cells to defend against infection.