PHGY 210 Lecture Notes - Lecture 2: Venae Cavae, Central Venous Pressure, The Fluid

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The 4 basic : volum , flow , pressure, resistant. You do(cid:374)"t ha(cid:448)e to (cid:373)e(cid:373)orize all the (cid:374)u(cid:373)(cid:271)ers i(cid:374) this le(cid:272). The blood volume = 5 l. (memorize) ---this is for man, healthy, around 20 , and at rest. (women has less than 5 l of blood, due to she weight last. ) 1 unit of blood =450ml. most of blood (60%) is in the veins, about 10 %in artery , 10 %in heart, 10%in the big vessels, lung, pulmonary circulation, and about 10 %in arterials capillaries . This is why we refer veins (venous) as capacity vessel = capacitance = this is where most of the blood is seating. But , under normal situation, 60%of blood is in the vein and venous. This is because left ventricle pump the blood to the whole body and there is a resistant to the flow (next lec), most of the resistance is in arterials and small artery.

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