Blood and Stuff Flashcards
What is the the percentage ratio of the contents of blood?
55% plasma, 45% RBC, buffy coat (WBC and platelets)
What percentage of plasma is water?
90%
What is the part of blood that excludes clotting factors?
serum
What is the liquid, cell-free part of blood that has been treated with anticoagulants?
plasma
What is the proportion, by volume, of the blood that consists of RBCs?
hematocrit
What is the clinical name for red blood cells?
erythrocyte
What is the size of a normal RBC?
7-8 um
How long is the lifespan of an RBC?
120 days
What organ breaks down blood?
spleen
What occurs when there is a reduction in RBC count?
anemia
What is sickle-cell anemia?
an inherited hemolytic disorder where an abnormal hemoglobin is produced causing the cell to assume a sickle shape
What is iron-deficiency anemia?
most common, reduced cell size caused by a shortage of iron
What is vitamin-deficiency anemia?
results from low levels of vitamin B12 or folic acid
What is the difference between aplastic and hemolytic anemia?
aplastic - body stops making enough RBC, hemolytic - RBC get broken up in blood stream or spleen
What is multiple myeloma?
a cancer that forms when RBC’s stack together like plates
What is the normal thousand count of WBC?
5-10k
What is the suffix that means a decrease in # of WBC?
-penia
What is the suffix that means in increase in # of WBC?
-cytosis
Where are WBC released from?
bone marrow
What are the three types of granular WBC?
basophil, neutrophil, eosinophil
What type of WBC is very rare and seen in anaphylactic shock?
basophil
What type of WBC is most abundant, making up 60-70%, and part of the first line of defense?
neutrophil
What type of RBC has red/orange granules and seen in allergies and parasite defense?
eosinophil
What are the two types of agranular WBC?
lymphocytes and monocytes
What type of RBC is 2nd most abundant, spherical with a deeply stained nucleus?
lymphocytes
What type of RBC has a horseshoe shaped nucleus and the garbage collector?
monocytes
Where are platelets derived from?
megakaryocytes
What are platelets involved in?
hemostasis and the coagulation cascade
Which part of a blood smear do we use to view the blood?
body
What are the three causes of anemia’;
reduced blood production, increased blood destruction, increased loss of blood
