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Circulatory System Overview and Components Quiz

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Circulatory System Overview and Components Quiz

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Questions and Answers

What are the two major divisions of the circulatory system?

Systemic circulation and arterial circulation

Pulmonary and venous circulation

Venous circulation and capillary circulation

Pulmonary circulation and systemic circulation (correct)

What is the formula for cardiac output?

$Heart rate \times Stroke volume$ (correct)

$Heart rate + Stroke volume$

$Heart rate \div Stroke volume$

$Heart rate - Stroke volume$

What is the force that drives blood flow?

Volume

Resistance

Velocity

Pressure (correct)

What are the components of the circulatory system responsible for the distribution of blood?

Arteries and arterioles Signup and view all the answers

What determines venous return according to the Starling law of the heart?

Systemic filling pressure Signup and view all the answers

What regulates arterial pressure (AP) according to the text?

Renin-angiotensin system Signup and view all the answers

How is steady-state control maintained by the autonomic nervous system?

By adjusting peripheral resistance Signup and view all the answers

What regulates cardiac output and peripheral resistance in the rapid control by the autonomic nervous system (ANS)?

Vasoconstriction of nearly all arterioles Signup and view all the answers

What does the renin-angiotensin-aldosterone system lead to?

Retention of water by the kidney (aldosterone) Signup and view all the answers

What determines venous return according to the Starling law of the heart?

Afterload - Arterial pressure that the left ventricle must overcome to eject blood preload - End-diastolic volume or end-diastolic pressure Signup and view all the answers

How does blood get back to the heart according to the text?

In rapid control by the autonomic nervous system: The baroreceptor reflex Constriction of nearly all arterioles Constriction of veins Acceleration of heart rate Signup and view all the answers