Additional Notes Module 4: Blood Flow, Blood Pressure, and Resistance Flashcards

1
Q

____ is the movement of blood through a vessel, tissue, or organ.

A

Blood flow

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2
Q

The slowing or blocking of blood flow is called ____

A

resistance

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3
Q

_____ is the force that blood exerts upon the walls of the blood vessels or chambers of the heart.

A

Blood pressure

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4
Q

The components of ______ include systolic pressure, which results from ventricular contraction, and diastolic pressure, which results from ventricular relaxation.

A

blood pressure

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5
Q

______ is the difference between systolic and diastolic measures, and mean arterial pressure is the “average” pressure of blood in the arterial system, driving blood into the tissues.

A

Pulse pressure

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6
Q

____, the expansion and recoiling of an artery, reflects the heartbeat.

A

Pulse

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7
Q

The variables affecting blood flow and blood pressure in the ______ are cardiac output, compliance, blood volume, blood viscosity, and the length and diameter of the blood vessels.

A

systemic circulation

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8
Q

In the _____, vasodilation and vasoconstriction of the arterioles is a significant factor in systemic blood pressure: slight vasodilation greatly decreases resistance and increases flow, whereas slight vasoconstriction greatly increases resistance and decreases flow.

A

arterial system

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9
Q

In the arterial system, as resistance increases, blood pressure increases and flow _____.

A

decreases

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10
Q

In the _____, constriction increases blood pressure as it does in arteries; the increasing pressure helps to return blood to the heart.

A

venous system

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11
Q

In addition, constriction causes the vessel lumen to become more ____, decreasing resistance and increasing blood flow.

A

rounded

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12
Q

________ , while less important than arterial vasoconstriction, works with the skeletal muscle pump, the respiratory pump, and their valves to promote venous return to the heart

A

Venoconstriction

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