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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which two organ systems primarily work together to move your arm?

Digestive and respiratory systems

Muscular and nervous systems

Endocrine and urinary systems

Integumentary and lymphatic systems

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Verified step by step guidance

Step 1: Begin by identifying the primary function of moving your arm. Movement involves the contraction of muscles, which are controlled by signals from the nervous system.

Step 2: Understand the role of the muscular system. Muscles are responsible for generating force and movement by contracting and relaxing. Skeletal muscles, in particular, are attached to bones and facilitate voluntary movements like moving your arm.

Step 3: Understand the role of the nervous system. The nervous system sends electrical signals (action potentials) from the brain and spinal cord to the muscles via motor neurons, instructing them to contract or relax.

Step 4: Eliminate the other options by analyzing their primary functions. For example, the digestive and respiratory systems are involved in nutrient absorption and gas exchange, not movement. Similarly, the endocrine and urinary systems regulate hormones and waste elimination, and the integumentary and lymphatic systems focus on protection and immune response.

Step 5: Conclude that the muscular and nervous systems work together to move your arm, as the nervous system provides the signals and the muscular system executes the movement.