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 the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

Which of the following best describes the convalescence phase of an infection in terms of homeostasis?

The body is in a state of initial exposure and beginning to recognize the pathogen.

The body is returning to its normal state as symptoms decrease and homeostasis is restored.

The body is experiencing the peak of symptoms and maximum disruption of homeostasis.

The body is actively fighting off the infection with an elevated immune response.

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Verified step by step guidance

Understand the concept of homeostasis: Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes. During an infection, homeostasis can be disrupted as the body responds to the pathogen.

Identify the phases of infection: Typically, an infection progresses through several phases, including initial exposure, peak symptoms, active immune response, and convalescence.

Define the convalescence phase: This phase occurs after the peak of symptoms and active immune response. It is characterized by the gradual reduction of symptoms and the body's efforts to return to its normal state.

Relate convalescence to homeostasis: During convalescence, the body's systems work to restore homeostasis, meaning that physiological functions are returning to their baseline levels as the infection resolves.

Select the best description: The convalescence phase is best described as the period when the body is returning to its normal state, symptoms decrease, and homeostasis is restored.