What two factors determine the pressure gradient that drives circulation? O cardiac output and peripheral resistance O blood vessel radius and blood vessel length O diastolic pressure and systolic pressure O heart rate and stroke volume

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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What two factors determine the pressure gradient that drives circulation?
O cardiac output and peripheral resistance
O blood vessel radius and blood vessel length
O diastolic pressure and systolic pressure
O heart rate and stroke volume
Transcribed Image Text:What two factors determine the pressure gradient that drives circulation? O cardiac output and peripheral resistance O blood vessel radius and blood vessel length O diastolic pressure and systolic pressure O heart rate and stroke volume
Expert Solution
Step 1

Pressure gradient

By creating a pressure gradient, the heart drives the blood through the vessels. The heart creates a mean arterial pressure that allows the blood to flow from the arteries to the veins. The blood moves from the higher pressure to the lower pressure.

 

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