Mastering A&P Ch 17 – Flashcards

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

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

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

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

Which of the following is true of the structure of an erythrocyte? Erythrocytes can bend and twist to fit through vessels. Erythrocytes are cell fragments. Erythrocytes are nucleated cells. Erythrocytes are larger than other cells in the blood.

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

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

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

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

Suppose that an individual injects himself with erythropoietin in order to raise his level of endurance, an act that is usually illegal in competitive sports. Which of the following could result? a lower hematocrit decreased blood viscosity polycythemia reduced tendency for blood to clot

When a person has an acute bacterial infection, such as bacterial meningitis or appendicitis, which type of leukocyte increases in number? eosinophils lymphocytes neutrophils basophils

Which type of leukocyte is responsible for antibody production? monocytes lymphocytes eosinophils basophils

Which of the following is NOT a functional characteristic of leukocytes? leukocytosis amoeboid motion diapedesis positive chemotaxis

Which of the following is FALSE regarding the role of platelets in hemostatic reactions? Platelets release chemicals that attract and bind other platelets. Platelets release the only chemical factors that can initiate coagulation. Platelets do not stick to intact endothelial cells. Platelets adhere to exposed collagen fibers.

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

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

A person with type O blood has ______ O antigens neither A nor B agglutinogens neither anti-A nor anti-B agglutinins O agglutinins