Unit 1 Flashcards
(103 cards)
what are the 3 major components of a spun sample of blood?
plasma
buffy coat
hematocrit
what are the four subcomponents of plasma?
water
ions
organic solutes
nitrogenous waste
what two molecules bind to hemoglobin?
oxygen & co2
what 3 leukocytes are considered granulocytes?
neutrophils
eosinophils
basophils
what 2 leukocytes are considered granulocytes?
lymphocytes
monocytes
what is the process of hemostasis?
vascular spasm, platelet plug formation, coagulation, clot retraction, thrombolysis
what is preload?
the amount of nlood in the heart prior to contraction
if endocrine hormones are in circulation, the stroke volume will
increase
how long does an erythrocyte live?
120 days
the health of erythrocytes is checked by
the spleen
erythrocytes are destroyed when they become too
rigid
when iron is taken out of the liver, the remaining substances are converted into
bilirubin
what is used in the intestine that emulsifies fats
bile
what organ checks if erythropoiesis needs to occur
kidneys
what organ checks if leukopoiesis needs to occur?
immune system
what organ checks if thrombopoiesis needs to occur?
liver
what cells are created as a result of erythropoiesis?
erythrocytes
what cells are created as a result of leukopoiesis?
leukocytes
what cells are created as a result of thrombopoiesis?
platelets
where does erythropoiesis, leukopoiesis, and thrombopoiesis all occur?
red bone marrow
what area of an EKG does atrial depolarization occur?
p wave
what area of an EKG does ventricular repolarization occur?
t wave
what area of an EKG does ventricular depolarization occur?
qrs wave
what area of an EKG does ventricular contraction occur?
st segment