Chapter 21: Blood Flashcards
functions of blood
transport, maintenance of body temp, acid/base balance, defense
major components of blood
plasma 55%, buffy coat <1%, erythrocytes 44%
serum is plasma without ______
clotting proteins
other solutes in plasma composition consists of
erythrocytes, organic nutrients & wastes, dissolved gases (O2, CO2)
red blood cells is made in ____ through a process called _____
red bone marrow, erythropoiesis
where are old RBC’s recycled by phagocytic cells in
liver & spleen
what is heme converted into after it is recycled
biliverdin & bilirubin
low RBC count
anemia
high RBC count
polycythemia
shrunken/shrived RBCs
sickle cell anemia
surface antigens + opposing antibodies =
agglutination (clumping)
five types of white blood cells
neutrophil, eosinophil, basophil, monocyte, lymphocyte
60% of all white blood cells
granulocytes (neutrophil, eosinophil, basophil)
30% of all white blood cells
agranulocytes (monocyte, lymphocyte)
low WBC count, diseases (aids, chickenpox, flu, measels, etc.), chemotherapy, radiation therapy
leukopenia
high WBC count, usually result of infection or physiological stress
leukocytosis
cancer occurring in the WBC-forming cells of the bone marrow that leads to too many WBCs & abnormally developed WBCs
leukemia
cell fragments that contains proteins & enzymes important for clotting
platelets
phagocytize bacteria
neutrophil
low platelet count
thrombocytopenia
neutrophil function
phagocytize bacteria
eosinophil function
kill parasitic worms
basophil function
release histamine
lymphocyte function
direct cell attack via antibodies
