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

Where is the cardiac center that regulates the electrical conduction system of the heart located?

In the left ventricle

In the medulla oblongata

In the sinoatrial node

In the right atrium

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Verified step by step guidance

Understand the role of the cardiac center: The cardiac center is responsible for regulating the heart rate and the force of contraction through the autonomic nervous system.

Identify the location of the cardiac center: The cardiac center is located in the medulla oblongata, which is part of the brainstem.

Differentiate between the cardiac center and the electrical conduction system: The cardiac center in the medulla oblongata influences the heart's activity, while the electrical conduction system includes structures like the sinoatrial node and atrioventricular node within the heart.

Recognize the function of the sinoatrial node: The sinoatrial node, located in the right atrium, is the natural pacemaker of the heart, initiating electrical impulses that set the rhythm for heartbeats.

Clarify the role of the medulla oblongata: The medulla oblongata integrates signals from the body and adjusts heart rate and blood pressure accordingly, but does not directly conduct electrical impulses within the heart.