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Ch. 42 - Circulation and Gas Exchange
Chapter 42, Problem 3

Pulse is a direct measure of a. blood pressure. b. stroke volume. c. cardiac output. d. heart rate.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Pulse

Pulse refers to the rhythmic expansion and contraction of arteries as blood is pumped by the heart. It is typically measured at various points on the body, such as the wrist or neck, and provides vital information about heart function and overall cardiovascular health.
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Heart Rate

Heart rate is the number of times the heart beats per minute (bpm). It is a key indicator of cardiovascular fitness and can be influenced by factors such as exercise, stress, and overall health. Pulse is essentially a direct measure of heart rate, as it reflects the frequency of heartbeats.
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Cardiac Output

Cardiac output is the volume of blood the heart pumps per minute, calculated as the product of heart rate and stroke volume. While pulse provides a measure of heart rate, cardiac output gives a broader understanding of how effectively the heart is supplying blood to the body, which is crucial for maintaining organ function.
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