KINE 3012 Lecture Notes - Lecture 18: Mean Arterial Pressure, Aortic Valve, Pulse Pressure
6 Mar 2018
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Document Summary
In the aorta: there are smooth muscle cells there, but there is mostly elastin. Compliance: change in v / change in p something that is more compliant stretches easier, and less compliant stretches less and is more sti . Systole: left ventricle will be ejecting blood into the aorta. At rest, the stroke volume is 75 ml of blood in 0. 3 seconds. The aorta is going to expand in response to this. Diastole: when the pressure decreases in the aorta, the elastin bres will begin to recoil again and are going to rebound back to their original shape. Windkessel e ect and the aorta"s elasticity: it turns the intermittent ow that is coming from your heart to a continual ow so that all the cells in your body are always getting blood. If you didn"t have a compliant aorta, your blood pressure would go way higher than 120mmhg.
