Exercise 29 Flashcards
why is a differential WBC count more valuable than a total WBC count when trying to determine the specific source of pathology
pinpoint problem because cells are specialized
cell fragments
platelets
transports oxygen
red blood cells
ABO blood type is least common
AB
exits a blood vessel to develop into a macrophage
monocyte
if you had a high hematocrit, would you expect your hemoglobin determination to be high or low? Why?
high; increase hematocrit, increase RBC count, and high hemoglobin
agranulocytes
lymphocyte and monocyte
list the formed elements present in the blood
RBC, WBC, and platelets
most numerous leukocyte
neutrophil
ABO blood type is most common
O
condition of too few RBCs or of RBCs with hemoglobin deficiencies
anemia
primary water, noncellular; the fluid matrix of blood
plasma
the least numerous but largest of all agranulocytes is the:
monocyte
phagocytic leukocyte
monocyte, neutrophil, and eosinophil
blood typing is based on the presence of proteins known as —- on the outer surface of the red blood cell plasma membrane
antigens
releases histamine; promotes inflammation
basophil
involved in destroying parasitic worms
eosinophil
what blood type is theoretically considered the universal donor? Why?
O-; no antigens to sensitive blood negative should not take positive but positive can take negative
abnormal increase in the number of RBCs
polycythemia
are the leukocytes responsible for releasing histamine and other mediators of inflammation
basophil
precursor cell of platelets
*thrombcyte
megakaryocyte
abnormal decrease in the number of WBCs
leukopenia
define hematocrit
percentage of blood cell volume
normal values (healthy male adults) total WBC count
4k-10k cu mm
normal values (healthy male adults) total RBC count
4-6 million
what is the average lifespan of a red blood cell? How many is anucleate condition affect this life span?
100-120 days; aneorbic respiration; limited number of ATP; short life span
a permanent move from sea level to high-altitude area
increase because of low oxygen
the normal hematocrit value for —- generally higher than that of the opposite gender
males
produces antibodies
* b-cells
plasma
define formed elements
blood cells/ cell like structures
the five types of white blood cells
neutrophil, basophil, eosinophil, monocyte, and lymphocyte
body’s natural anticoagulant
heparin
also called an erthrocyte; anucleate formed element
red blood cell
blood volume of an average-size adult male
5-6 liters
granulocytes
basophil, neutrophil, and eosinophil
three types of formed elements found in blood include erythrocytes, leukocytes, and:
platelet
what determines whether blood is bright red or a dull brick red
oxygenation
abnormal increase in the number of WBCs
leukocytosis
describe the consistency and color of the plasma you observed in the laboratory
sticky, light straw color
long-term effect of athletic training (for example running 4 to 5 miles per day over a period of 6-9 months)
increase RBC due to increase demand for oxygen
substance that inhibits coagulation, heparin and EDTA
anticoagulant
normal values ( healthy male adults) bleeding time
0-5 minutes
blood volume of an average-size adult female
4-5 liters
