CH 17 blood – Flashcards

In a centrifuged sample of blood, what should NOT be in the plasma portion of the sample? albumin platelets electrolytes fibrinogen

Which of these represents the majority of whole blood by volume? leukocytes platelets plasma erythrocytes

What is the name of the protein found in erythrocytes that transports respiratory gases? antibodies fibrinogen albumin hemoglobin

What triggers erythropoietin (EPO) production to make new red blood cells? too many platelets reduced availability of oxygen excess oxygen in the bloodstream a high hematocrit

How many oxygen molecules can be transported by one hemoglobin molecule? two four eight

Which of the formed elements is present in the greatest concentration? agranular leukocytes platelets granular leukocytes erythrocytes

All lymphocytes are also leukocytes. True False

Which of the following is NOT a function of blood? distribution regulation hormone production protection

Which formed element can be described as membrane-enclosed cytoplasmic fragments? lymphocytes platelets erythrocytes monocytes

Choose the incompatible transfusion. Donate type O blood to a recipient with type AB blood. Donate type A blood to a recipient with type AB blood. Donate type B blood to a recipient with type AB blood. Donate type B blood to a recipient with type O blood.

Granulocytes called neutrophils are phagocytic and are the most numerous of all white blood cell types. True False

What part of the body does erythropoietin (EPO) target to increase erythropoiesis? kidneys bone marrow liver lungs

Which ABO blood type is considered to be the universal recipient? B O A AB

A person who lacks agglutinogen A but has agglutinogen B would have blood type __________. A AB O B

What is a hematocrit? Hematocrit is the percentage of erythrocytes in a whole blood sample. Hematocrit is the percentage of all formed elements in a whole blood sample. Hematocrit is the percentage of leukocytes and platelets in a whole blood sample. Hematocrit is the percentage of plasma in a whole blood sample.

Which of these is true of the materials making up the buffy coat in centrifuged blood? They are intermediate in density between erythrocytes and plasma. They are denser than erythrocytes but less dense than plasma. They are less dense than both erythrocytes and plasma. They are denser then plasma and erythrocytes.

Which of the following is NOT a formed element in whole blood? erythrocytes platelets leukocytes albumin

Mature erythrocytes lack a nucleus. True False

Which of the following does NOT stimulate erythrocyte production? a drop in normal blood oxygen levels testosterone erythropoietin hyperventilating

What organ in the body regulates erythrocyte production? pancreas liver brain kidney

Each hemoglobin molecule can transport two molecules of oxygen. True False

Which granulated leukocyte is most likely to be active during a bacterial infection? lymphocytes basophils monocytes neutrophils

Which of the choices below is the parent cell for all formed elements of blood? polymorphonuclear cell hemocytoblast normoblast megakaryocyte

All lymphocytes are leukocytes, but not all leukocytes are lymphocytes. True False

Hemostasis is important for __________. red blood cell recycling red blood cell production stoppage of bleeding white blood cell production

Which step in hemostasis involves activation of formed elements in the blood? platelet plug formation coagulation fibrin production vascular spasm

The immediate response to blood vessel injury is clotting. True False

AB blood type is the universal blood recipient because of that type's lack of agglutinogens. True False

A mismatch of blood types during a transfusion is dangerous because ________. antibodies in the donor's plasma will attack and kill the recipient's healthy blood cells white blood cells from the donor's blood cause inflammation clotting factors in the donor's blood will cause unwanted clots known as thrombus preformed antibodies in the recipient's blood will bind and clump (agglutinate) the donated cells

Which blood type is generally called the universal donor? O AB A B

An individual who is blood type AB negative can ________. receive any blood type in moderate amounts except that with the Rh antigen donate to types A, B, and AB, but not to type O receive types A, B, and AB, but not type O donate to all blood types in moderate amounts

Which statement is true? A person with type AB blood does produce agglutinins. Type O is the universal recipient. Type A blood cannot be given to people with type B blood. Type AB is the universal donor.

A person with type B blood could receive blood from a person with either type B or type O blood. True False

What percentage of our blood is plasma? A. 90% B. 55% C. 45% D. 65%

After centrifuging, of the listed blood components, which contains the components of immune function? A. Plasma B. Buffy coat C. Erythrocytes D. Hematocrit

Which of the following is present in a red blood cell? a. Nucleus b. Plasma membrane c. Ribosome d. Mitochondrion

Each hemoglobin can transport ________ oxygen atoms. A. 4 B. 40 C. 400 D. 4000

Oxygen binds to the _______ portion of hemoglobin. A. globin B. oxyhemoglobin C. iron atom D. amino acid

A hematopoietic stem cell will give rise to __________. A. erythrocytes B. leukocytes C. platelets D. all of the above

What response would you expect after traveling to high altitude for two weeks? A. Blood levels of oxygen would remain depressed for the duration. B. A surge in iron release from the liver would occur. C. The kidneys would secrete elevated amounts of erythropoietin. D. There would be no change in blood composition.

The target organ of erythropoietin is the ______. A. kidney B. liver C. thymus D. red bone marrow

An elevated neutrophil count would be indicative of ________. A. an allergic reaction B. a cancer C. an acute bacterial infection D. a parasidic infection

Why don't platelets form plugs in undamaged vessels? A. Platelets aren't formed until vessel damage occurs. B. Only contact of platelets with exposed collagen fibers causes them to be sticky and form plugs. C. Plugs do form, but are removed by macrophages. D. Platelets don't form plugs, it is the megakaryocytes that form the plugs.