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CARDIOVASCULAR SYSTE

Cardiovascular System

What is the difference between end systolic and end diastolic volume? End Systolic volume=blood left behind during ventricle ejection end diastolic volume=blood resulting from ventricular filling
What is cardiac output Amount of blood ejected by each ventricle in 1 minute
Calculate CO(cardiac output) CO=Heart rate * stroke volume CO=(beats/minute) *( amount of blood in ml/beat)
What are the steps involved in the stoppage of bleeding(Hemostasis). List in order 1.Vascular spasm 2.Platelet plug formation 3.blood clotting-
What is the first step in hemostasis(stoppage of bleeding)
What is the second step of hemostasis(stoppage of bleeding) 2.Platelet plug formation-Platelet sticks to collagen walls via pseudopods which contract and closes off the bleeding of the vessel(better)
What is the third step of hemostasis(stoppage of bleeding) 3. blood clotting(coagulation)-Over 30 chem reactions. Converts fibrinogen to fibrin-stop bleeding.
What is the difference between intrinsic and extrinsic pathways Intrinsic-Blood clots without tissue factors Extrinsic-Blood clots with clotting factors released from damaged blood vessel and perivascular tissues.
What is an antigen? An antigen = complex molecule unique to an individual and present on cell surface
What is an antibody? An antibody=a substance secreted by plasma proteins and mark cells or structures that contain antigens for destruction.
What is the composition of blood? Give percents Plasma-water, solutes and proteins formed elements-1.RBCS(erythocytes) 2. White blood cells(leukocytes) 3. platelets(thrombocytes)
What is the Rh blood group? Why is it important Rh-A blood group related to the absence or presence of Antigen D Incompatability=hemolytic disease of the newborn(HDN)
Created by: cokazeh
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