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

3. Energy & Cell Processes

Introduction to Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cellular Respiration

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Multiple Choice

Which of the following changes occur in the body to maintain homeostasis when you begin to exercise?

Reduced blood flow to the skin to prevent heat loss

Lowered body temperature to reduce metabolic rate

Increased heart rate to supply more oxygen to muscles

Decreased breathing rate to conserve energy

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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 changes in external conditions. During exercise, the body undergoes several physiological changes to maintain homeostasis.

Identify the physiological demands of exercise: Exercise increases the demand for oxygen and nutrients in the muscles, and the body must adapt to meet these demands. This involves changes in cardiovascular and respiratory systems.

Analyze the options given: Consider each option and how it relates to the body's response to exercise. Reduced blood flow to the skin, lowered body temperature, and decreased breathing rate are not typical responses to exercise.

Focus on the correct physiological response: Increased heart rate is a key response during exercise. It helps to supply more oxygen and nutrients to the muscles, which is essential for maintaining energy production and performance.

Consider the role of increased breathing rate: Although not listed as the correct answer, increased breathing rate is also a typical response to exercise, as it helps to increase oxygen intake and carbon dioxide expulsion, supporting the increased metabolic demands.