Question 9 2 pts Which best defines the cardiac output? the end-diastolic volume

Question

Question 9 2 pts Which best defines the cardiac output? the end-diastolic volume minus the end-systolic volume the output of the aortic arch baroreceptors the volume of blood in the great vessels at any moment in time the stroke volume divided by the heart rate the (mathematical) product of the heart rate and the volume ejected from the ventricle during a cardiac cycle Question 10 2 pts During exercise, when blood is preferentially shunted away from the Gl tract and towards the skeletal muscles instead, what causes an increased flow to the muscles? Increased resistance in the arterioles leading to the Gl tract. Reduced resistance in the arterioles leading to the active skeletal muscles. Reduced diameter of the arterioles leading to the GI tract Increased diameter of the arterioles leading to the active skeletal muscles All of the above.

Explanation / Answer

9. e. the ( mathematical) product of the heart rate and the volume ejected from the ventricle during a cardiac cycle.

Cardiac output is the amount of blood pumped by the heart per minute.

10.e.all of the above.

During exercise there is an increase in skeletal muscle blood flow that occurs during muscular activity.

  

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