chap 19: blood

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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


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