Arterial Blood Pressure

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Constant and adequate pressure in the arterial system is requi reddened to drive blood into all of the organs. abnormally low blood pressure results in inadequate perfusion of organs, plot of land abnormally high blood pressure can brace heart disease, vascular disease and stroke. thitherfore, it is essential that blood pressure be maintained within a narrow re show of values that is consistent with the needs of the tissues.
MAP = CO x TPR
MAP is normally 120/80
Formula for MAP = diastolic pressure + 1/3 (systolic-diastolic)
The 4 most all-important(a) variables affecting arterial blood pressure are:
TPR
meat Rate
Stroke Volume
Viscosity of blood

1 Total Peripheral resistance
vindication of arterioles is important in maintenance of arterial BP
Arterioles contain VSM and has the efficiency to contract and relax
Regulated by sympathetic nervus activity
Resistance,and its relation to volumetric flow rate (Q) and pressure deviance between the two ends of a vessel are exposit by Poiseuilles Law.

2. Heart Rate
The volume of blood flow from the heart is called the cardiac output, which is HR (the rate of contraction) multiplied by the SV (the meter of blood pumped out from the heart with each contraction).



The high(prenominal) the heart rate, the higher the arterial pressure, assuming no drop-off in stroke volume

3. Stroke Volume
The amount of blood that is present in the body. The more blood present in the body, the higher the rate of blood return to the heart and the resulting cardiac output. There is some relationship between dietary salt ambition and increased blood volume, potentially resulting in higher arterial pressure

4. Viscosity
If the blood gets thicker, the result is an increase in arterial pressure. authentic medical conditions can change the viscosity of the blood. For instance, low red blood cell concentration, anemia, reduces viscosity, whereas increased red blood cell concentration...If you want to get a full essay, order it on our website: Orderessay



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