Chapter 19

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Which of the following is not true of blood in its transporting role?

carries oxygen from the cells to the lungs

The substance that stimulates formation of platelets is:

thrombopoietin

Which statement does not describe a component of the RBC life cycle

biliverdin is the protein that stores iron

Which of the following statements is true?

hypoxia increases the secretion of erythropoietin by the kidneys

Which of the following is not a factor in destroying attacking pathogens?

erythropoiesis

An increase in white blood cell count above normal levels is called:

leukocytosis

Which of the following is not an example of hemostasis?

maintenance of the normal body temperature

Which of the following is not involved in platelet plug formation?

the release of ADH to make the platelets bind to each other

Which statement is false?

type AB persons are called universal donors

The myeloid stem cell gives rise to

monocytes and macrophages.
megakaryocytes and platelets.
red blood cells.
granulocytes.
*All of these choices

Stem cells obtained from cord blood may be preferred over those obtained from red bone marrow because

stem cells are found in greater numbers in cord blood.
fetal and neonatal lymphocytes found in cord blood are less likely to cause graft-versus-host disease.
infections occur less frequently with stem cells derived from cord blood.
stem cells from cord bl

After testing your blood in the lab, you found that your red cells agglutinated with both anti-A and anti-B antisera. This means that you

have A and B antigens on your RBC.

The group of hereditary anemias known as the thalassemia are due to

deficient synthesis of hemoglobin

A bluish/dark-purple skin discoloration due to an increased quantity of deoxyhemoglobin is called

cyanosis

Which is a normal number of platelets?

200,000/´┐ŻL

Lysozyme, superoxide anion, hydrogen peroxide, and defensins are all part of the pathogen-destroying chemicals used by

Neutrophils

Blood is classified as a liquid

connective tissue

One of the following is not a formed element found in blood.

lymphocyte
red blood cell
platelet
white blood cell
*all the above are formed elements

Which correctly lists the sequence of events in blood clot formation

activation of Factor X; formation of prothrombinase; formation of thrombin; formation of fibrin; clot retraction

T/F Hemolytic disease of the newborn can occur if the mother is Rh positive and the father is Rh negative and the baby inherits the mothers blood type.

False

Granular leukocytes, macrophages. B cells, T cells, and natural killer cells all function in:

Defense

T/F Thrombosis refers to clotting in a blood vessel that has not been broken.

True

T/F A differential white blood cell is a count to determine the percentage of the five types of white blood cells in a sample. This helps a physician to detect infection or inflammation, monitor blood disorders, determine the effect of poisoning or diagno

True

T/F A woman who is Rh negative and a man who is Rh positive had a child who was Rh negative. This means that the next child born to this couple will be at a high risk of developing hemolytic disease of the newborn.

False

Erythrocytes are:

biconcave disks with a diameter of 7 - 8 micrometers in diameter
filled with hemoglobin for carrying oxygen.
anucleate (lack a nucleus)
*all of these

A hemopoietic growth factor:

is a hormone that aids in proliferation of progenitor cells

T/F Vascular spasm is an immediate contraction of the smooth muscle in the walls of arteries and arterioles while platelet plug formation involves platelet aggregation.

True

T/F Hemolysis can occur after a mismatched blood transfusion because complement molecules make plasma membranes fragile or leaky.

True

T/F If your blood type is O negative and you have never been exposed to Rh positive blood, you will have in your plasma antibodies to A, B, and Rh antigens.

False

T/F The extrinsic pathway of blood clotting occurs much quicker than the intrinsic pathway.

True