KINE 1020 Lecture Notes - Lecture 10: Vascular Resistance, Stroke Volume, Exercise Intensity
23 Feb 2017
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Second bump is the pressure bouncing back of blood in body because the aortic valve is closed. T wave: ventricles repolarise and reset themselves for more passive filling, up until the next p wave. Exhale deoxygenated and oxygenated air: pushing out all new air excepted the remaining deoxygenated air remaining in the lungs at the end of breath. Hemoglobin passes through a capillary to reach the muscle or tissue. Get oxygen off hemoglobin into muscle we need a pressure differentials, so we need high o2 pressure in the blood and low o2 in the muscle, or whichever tissue. When you exercise your cardiac output increase so it speeds up this process. Two times where the oxygen must transfer across membranes: at the lungs in the pulmonary capillaries. Oxygen deficient: takes a second for your oxygen delivery and consumption system to kick in, other things work at the beginning, still doing work but the vo2 is not there yet.
