Cardiovascular System - Unit 2 Flashcards
the consistency of blood is
viscous
oxygenated blood is
red colored
when centrifuging a sample of blood, it will divide into (3 sections)
plasma, RBC, and buffy coat
the liquid part of blood, takes up at 55% of volume
plasma
mostly h2o, contains nutrients/electrolytes/wastes/hormones/antibodies/clotting
plasma
buffy coat consists of
WBC and platelets
middle-white foamy layer in centrifuged blood sample
buffy coat
erythrocytes are
RBC
the % of v from the blood sample that is occupied of RBC
hematocrit
healthy range of hematocrit
38-56
males have more hematocrit than females because of
testostorone
biconcave/disc-shape/small allows these cells to to travel through capillaries
RBC
RBC are filled with
hemoglobin
red proteins that bind to O2 and CO2 (found in RBC)
hemoglobin
life cycle of RBC:
made by stem cells, travel through blood (ab 4months) till it denatures, removed by liver, liver breaks down hemoglobin, exited out of body through intestines.
sterobilin
chm from hemoglobin break down. its released through feces (brown)
urobilin
chm from hemoglobin break down. its released through urine (yellow)
the formation of RBC in RBM
hematopoiesis
hematopoietic stem cells are found in
RBM
Luekopoises is the formation of
WBC from hematopic stem cell
erythropoiesis is the formation of
RBC from hematopic stem cell
thrombopoiesis is the formation of
megakaryocytes which produce platelets
condition of abnormally high hematocrit (blood is more viscous and clots easier)
polycythemia
condition where blood cant carry sufficient O2 and causes low hemaglobin
anemia
genetic condition where abnormal hemoglobin clumps together to become weirdly shaped therefore causing clotting
sickle cell
genetic condition where half of the hemaglobin is dysfunctional
sickle cell trait
molecule thats a hybrid between phospholipid and carbohydrate on RBC surface
glycolipid
4 ABO types
A, B, AB, O
RBC can have a Rh glycoprotein. this is called:
Rh Blood type
Two types of Rh Blood
Rh+ and Rh-
Blood transfusion concerning Rh
pregnant Rh- mother with a Rh+ fetus and the babies blood could cause mom to create antiRh antibodies therefore killing the 2nd fetus if mom gets pregnant again
body’s response to bleeding/broken blood vessels
hemostasis
sm muscle contracts at the site of blood vessel injury and decreases blood flow across damage site.
vasoconstriction
platelets bind and stick to CT then drop into blood vessel’s walls
platelet plug formation
cells in blood vessel wall at the damage site surround tissue and release enzymes. the enzymes trigger formation of protein fibrin.
cogulation
