PSL301H1 Lecture Notes - Lecture 11: Mean Arterial Pressure, Radial Artery, Pulse Wave
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Pressure changes from high pressure to low pressure as it goes from arteries to veins. Rubber cuff is used to measure arterial blood pressure. When pressure of cuff exceeds the pressure of artery (120 in this case) no sounds. If pressure of cuff drops below 120 and above 70, blood will flow thru because pressure in artery exceeds the pressure in cuff. Pressure in cuff drops below 70 no sound. Pulse-pressure wave its the pulse wave of blood during contraction. Can be easily detected at pressure points e. g. temporal artery, radial artery, facial artery etc Blood pressure (120mmhg/80mmhg: pulse pressure = systolic p diastolic p. 120-80 = 40mmhg: mean arterial pressure (map) = 2/3 diastolic + 1/3 systolic. Stoke volume (sv) affects the pulse pressure the most because . Every time the artery receives blood from the heart, it expands with each stroke volume. The only thing that"s changing the blood vessel is the volume coming from the stroke volume.
