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.