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Questions and Answers
Which function of the heart is responsible for ensuring blood flows in one direction?
Which function of the heart is responsible for ensuring blood flows in one direction?
- Transmitting blood
- Managing blood supply
- Producing blood pressure
- Securing one-way blood flow (correct)
What is the purpose of the heart's contractions?
What is the purpose of the heart's contractions?
- To manage blood supply during rest
- To separate oxygenated and deoxygenated blood
- To ensure one-way blood flow
- To produce blood pressure (correct)
How does the heart manage blood supply?
How does the heart manage blood supply?
- By separating the pulmonary and systemic circulations
- By changing the rate and force of contractions (correct)
- By producing blood pressure
- By securing one-way blood flow
What does the heart separate to ensure oxygenated blood flows to tissues?
What does the heart separate to ensure oxygenated blood flows to tissues?
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What does the cardiovascular system consist of?
What does the cardiovascular system consist of?
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Study Notes
Functions of the Heart
- Heart contractions adapt to match blood flow with changing metabolic needs during rest, exercise, and posture changes, ensuring adequate blood supply.
- Heart contractions generate blood pressure, necessary for blood flow through blood vessels.
- Heart valves secure one-way blood flow through the heart and blood vessels, preventing backflow.
Anatomy of the Heart
- The cardiovascular system is comparable to a muscular pump with one-way valves and a network of large and small tubes (blood vessels) through which blood circulates.
- The heart separates pulmonary and systemic circulations, guaranteeing oxygenated blood flow to tissues.
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