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 the correct formula for calculating cardiac output?

Cardiac Output = Blood Pressure x Heart Rate

Cardiac Output = Stroke Volume - Heart Rate

Cardiac Output = Heart Rate x Stroke Volume

Cardiac Output = Stroke Volume / Heart Rate

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Verified step by step guidance

Understand the concept of cardiac output: Cardiac output is the volume of blood the heart pumps per minute. It is a crucial measure of heart function and overall circulatory health.

Identify the components involved in calculating cardiac output: The two main components are heart rate (the number of heartbeats per minute) and stroke volume (the amount of blood pumped by the heart with each beat).

Recognize the correct formula for cardiac output: The formula is Cardiac Output = Heart Rate x Stroke Volume. This formula reflects the relationship between the frequency of heartbeats and the volume of blood pumped with each beat.

Analyze why other options are incorrect: Blood Pressure x Heart Rate does not account for the volume of blood per beat, Stroke Volume - Heart Rate is not a valid operation for calculating cardiac output, and Stroke Volume / Heart Rate does not represent the multiplication needed to find the total volume per minute.

Apply the formula in practice: To calculate cardiac output, multiply the heart rate (in beats per minute) by the stroke volume (in milliliters per beat) to get the cardiac output in milliliters per minute.