chap 19: blood
the hematocrit is a measure of the percentage of whole blood occupied by
RBC
which of the following are included in a complete blood count?
RBC count, WBC count, platelet count, amount of hemoglobin
what prevents RBC from making ATP from the oxygen they transport?
RBC do not have mitochondria
a thrombus is
a collection of platelets and other cells on the endothelial surface
one of the following is NOT a formed element found in blood
all of the above/ lymphocyte; RBC; platelet; WBC
a person with the sympthoms of fatigue, cold intolerance, and pale skin may have
anemia
which of the following antibodies would you find in the plasma of a person with type O blood
anti-A and anti-B
which of the following blood cells release granules that intensify the inflammatory response and promote hypersensitivity (allergic) reactions?
basophils
which statement does NOT describe a component of the RBC life cycle
biliverdin is the protein that stores iron
hemochromatosis is characterized by
bronze discoloration of the skin, cirrhosis and diabetes mellitus
which of the following is NOT true of blood in its transporting role?
carries oxygen from the cells to the lungs
blood is classifed as a liquid
connective tissue
in a damaged blood vessel, the function of a vasoconstriction is to _____
decrease blood flow
a differential white blood cell count would not be appropriate to
differentiating high density lipoprotein (HDL) from low density lipoprotein (LDL)
an increase in WBC count would NOT be appropriate to
differentiating high density lipoprotein (HDL) from low density lipoprotein (LDL)
the function of fibrinolysin is to
dissolve clots by digesting fibrin threads
which of the following are conditions caused by leukemia
enlarged lymph nodes, reduced oxygen-carrying capacity of the blood, abnormal blood clotting, increased infection
increased numbers of ________ may occur in allergic reactions, parastitic infections, and some autoimmune diseases
eosinophils
which of the following blood cells phagocytizes antigen-antibody complexes and are effective against parastitic worms?
eosinophils
which of the following are phagocytic leukocytes?
eosinophils, neutrophils, monocytes
which of the folllowing formed elements found in the blood are derived from reticulocytes?
erythrocytes
which of the following is NOT a factor in destroying attacking pathogens?
erythropoiesis
which of the following clotting factors is involved in strengthening and stabilizing a blood clot?
factor XIII
which of the following plasma proteins plays a role in blood clotting
fibrinogen
the major function of RBC is
gas transport
which of the following plasma proteins plays a role in disease resistance?
globulins
after testing your blood in the lab, you found that your red cells agguglinated with both anti-A and anti-B antisera. this means that you
have A and B antigens on your RBC
all blood cell lines are derived from
hematocytoblasts
which anemia may damage the filtering units of the kidney
hemolytic anemia
the process by which the formed elements of the blood develop is called
hemopoiesis
which portion of the hemoglobin molecule combines to oxygen
iron
a hemopoietic growth factor
is a hormone that aids in proliferation of progenitor cells
which of the following blood cells are the main soldiers in the immune system defense of the body against microbial invaders?
lymphocyte
B cells, T cells, and natural killer cells are all considered
lymphocytes
which of the following is NOT an example of homeostatis?
maintenance of the normal body temperature
which of the following situations could result in maternal antibodies attacking fetal blood cells during a second pregnancy
mom is RH negative and baby is RH positive
which WBC has a primary responsibility to destroy formed tumor cells
natural killer cells
what are the most numerous WBC?
neutrophils
which of the following blood cells is a phagocyte?
neutrophils
the RBC
numbers about 5 and a half million per microliter in an adult male
in the body, the blood helps to regulate___
pH, homeostasis, body temp
when blood from a normal adult is centrifuged as shown in the figure, which of the following components occupies the greatest volume?
plasma
serum is
plasma without the clotting factors
name the 1st substance that is incorporated into the new clot
plasminogen
which of the following are functions of hemoglobin?
regulate blood pressure; carbon dioxide transport; oxygen transport; regulate blood flow
which of the following is NOT a function of the blood
secretion of hormones
which of the following is NOT involved in platelet plug formation
the release of ADH to make the platelets bind to each other
which is NOT a function of plasma proteins
they play an essential role in blood clothing; they help the immune system attack viruses and bacteria; they transport iron, lipids and fat soluble vitamins; they maintain water balance between the blood and tissues
the substance that stimulated formation of platelets is
thrombopoietin
the substance that stimulates formation of platelets is
thrombopoietin
which statement is false?
type AB persons are called universal donors
which of the following correctly lists the sequence of steps that occur during hemostasis in response to a damaged blood vessel?
vascular spasm, platelet plug formation, coagulation
before birth, hemopoiesis first occurs in the _____ of the embryo
yolk sac
average life span of an erythrocyte in the circulation is
120 days
which is a normal number of platelets
200,000/ml
approximately, how many hemoglobin molecules are found in each RBC?
280 million
what is the volume of blood in an average adult male
5-6 liters
what percentage of blood plasma is water
91.5%
which of the following blood types is a person whose blood cells were aggluginated by both anti-A serum and anti-B serum, but not by RH serum?
AB negative
what blood type is a person if their plasma contains only anti-A agglugtinin
B
