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HLSC 131 Blood
Terms in this set (62)
red blood cell
white blood cell (WBC)
the percentage of total blood volume occupied by erythrocytes is called the ______
liquid portion of blood
a cell fragment in the blood that plays an important part in forming blood clots
the uppermost straw-colored fluid in this test tube of centrifuged blood is ____________
Blood plasma is about _________% water.
7.35-7.45 (slightly alkaline)
What is the pH range of blood?
What is a normal, average hematocrit (red blood cell %) value?
Blood is the only fluid __________ in the body.
Blood is a specialized ________ tissue in which living blood cells are suspended in a nonliving fluid matrix.
erythrocytes (red blood cells) , leukocytes (white blood cells), and platelets
The formed elements of blood are:
Plasma is about ______ % of the total blood volume.
leukocytes; erythrocytes have no nuclei and platelets are cell fragments
Of the formed elements in the blood, only the ______ are considered true cells. Why?
97% of an erythrocyte is the iron containing molecule called _______
blood cell formation
red bone marrow
where blood cell formation takes place
a hormone produced and released by the kidney that stimulates the production of red blood cells by the bone marrow
a disorder characterized by an abnormal increase in the number of red blood cells in the blood
granulocytes and agranulocytes
two categories of leukocytes
neutrophils, lymphocytes, monocytes, eosinophils, basophils
5 types of white blood cells
neutrophils, eosinophils, basophils
Which white blood cells are granulocytes?
lymphocytes and monocytes
Which blood cells are agranulocytes?
neutrophils (50 - 70% of WBCs)
Which leukocyte is most numerous in the blood?
a phagocytic granulocyte
leukocyte capable of killing parastic worms; complex role in allergy and asthma
rarest white blood cell
production of white blood cells
overproduction of abnormal leukocytes/blood cancer
abnormally low white blood cell count
reduced oxygen-carrying ability of blood resulting from too few erythrocytes or abnormal hemoglobin
leukocyte which releases histamine; promotes inflammation
about 5 liters
adult average blood volume
most abundant plasma protein, accounting for most of the osmotic pressure of plasma
dark red blood is oxygen _____________
oxygen-transporting protein of erythrocytes
the life span of erythrocytes is about __________ days
formed element in the blood which is crucial for defense against disease
abnormally high WBC count (>11,000 cells/uL)
T-cells and B-cells, involved in immune response, are produced by which type of leukocyte
largest white blood cells
an agranular leukocyte that is able to migrate into tissues and transform into a macrophage
giant cells in bone marrow that fragment into platelets
the stopping of a flow of blood
1)vascular spasm 2)platelet plug formation and 3)coagulation
3 steps of hemostasis
first step in hemostasis in which damaged blood vessels respond to injury by constricting (vasoconstriction)
platelet plug formation
second step in hemostasis in which platelets stick together to form a temporary seal to cover the break in the vessel wall
third step in hemostasis -blood clotting
stationary blood clot
a clot that breaks lose and travels through the bloodstream
Blood types are determined by the presence or absence of glycoproteins called _________, on the RBC's.
O blood type
universal donor; no antigens present, no reaction when typing to either A or B solutions.
AB blood type
universal recipient; both A and B antigens present on rbc's
Refers to the presence or absence of the Rh antigen on red blood cells.
If mother is Rh- and baby is Rh+, than mother may develop antibodies against the infant's blood potentially causing problems in future pregnancies
__________ % of Americans are Rh+
Used to prevent an immune response to Rh positive blood in people with an Rh negative blood type
The formation of visible clumps as a result of antibodies binding to and cross-linking insoluble antigens when determining blood type
AB blood type
rarest of the ABO blood types
O blood type
most common blood type in ABO system
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