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

18. The Heart

Electrical Conduction System of the Heart

Anatomy & Physiology

18. The Heart

Electrical Conduction System of the Heart

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Multiple Choice

Which of the following is true about the heart's function in the circulatory system?

The heart operates independently of the nervous system.

The heart's right side pumps deoxygenated blood to the lungs for oxygenation.

The heart pumps oxygenated blood to the lungs and deoxygenated blood to the body.

The heart's left side receives deoxygenated blood from the body.

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Verified step by step guidance

Understand the basic anatomy of the heart: The heart is divided into four chambers - two atria and two ventricles. The right side of the heart deals with deoxygenated blood, while the left side handles oxygenated blood.

Recognize the flow of blood through the heart: Deoxygenated blood from the body enters the right atrium, moves to the right ventricle, and is then pumped to the lungs via the pulmonary arteries for oxygenation.

Identify the role of the left side of the heart: Oxygenated blood from the lungs returns to the left atrium, moves into the left ventricle, and is then pumped out to the rest of the body through the aorta.

Clarify the relationship with the nervous system: While the heart has its own intrinsic conduction system (the sinoatrial node), it is influenced by the autonomic nervous system, which can modify heart rate and force of contraction.

Evaluate the statements: The correct statement is that the heart's right side pumps deoxygenated blood to the lungs for oxygenation, aligning with the known function of the heart in the circulatory system.