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

17. The Blood

Introduction To Blood

Anatomy & Physiology

17. The Blood

Introduction To Blood

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Multiple Choice

Which of the following is the correct sequence of blood flow in mammals?

Right atrium → Right ventricle → Pulmonary arteries → Lungs → Pulmonary veins → Left atrium → Left ventricle → Aorta

Left atrium → Left ventricle → Pulmonary arteries → Lungs → Pulmonary veins → Right atrium → Right ventricle → Aorta

Left ventricle → Left atrium → Aorta → Lungs → Pulmonary veins → Right ventricle → Right atrium

Right ventricle → Right atrium → Pulmonary veins → Lungs → Pulmonary arteries → Left atrium → Left ventricle → Aorta

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Verified step by step guidance

Understand the basic structure of the mammalian heart, which consists of four chambers: the right atrium, right ventricle, left atrium, and left ventricle.

Recognize that blood flow in mammals is a double circulatory system, meaning it passes through the heart twice during one complete circuit: once for oxygenation in the lungs and once to deliver oxygen to the body.

Start with deoxygenated blood entering the right atrium from the body via the superior and inferior vena cavae.

Follow the flow of blood from the right atrium to the right ventricle, which then pumps it through the pulmonary arteries to the lungs for oxygenation.

After oxygenation, blood returns to the heart via the pulmonary veins into the left atrium, then moves to the left ventricle, which pumps it out through the aorta to supply the body with oxygenated blood.