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 of the following correctly matches the structure with its blood vessel type?

Arteries have valves, capillaries have thick walls, and veins have the thickest muscular walls.

Arteries have thick muscular walls, capillaries have thin walls of a single cell layer, and veins have valves.

Veins have the thickest walls, arteries have valves, and capillaries have multiple layers of muscle.

Capillaries have thick muscular walls, arteries have valves, and veins have a single cell layer.

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Verified step by step guidance

Step 1: Understand the structural differences between arteries, veins, and capillaries. Arteries are designed to handle high-pressure blood flow from the heart, veins return blood to the heart, and capillaries facilitate exchange of gases, nutrients, and waste between blood and tissues.

Step 2: Recall that arteries have thick muscular walls to withstand high pressure. This is due to the presence of smooth muscle and elastic fibers in their walls.

Step 3: Capillaries are composed of a single layer of endothelial cells. This thin structure allows for efficient diffusion of oxygen, carbon dioxide, nutrients, and waste products.

Step 4: Veins have valves to prevent backflow of blood as it moves toward the heart under lower pressure. Their walls are thinner than arteries but thicker than capillaries.

Step 5: Compare the options provided in the question with the anatomical facts above. Identify the correct match based on the structural characteristics of arteries, veins, and capillaries.