A & P II 19.1-19.7

Tissue factor (Factor III) is a factor in the ________ pathway

A. common B. fibrinolytic C retraction D. intrinsic E. extrinsic correct answer: E

White blood cells that release histamine at the site of an injury are

A. eosinophils. B. neutrophils. C. monocytes. D. basophils. E. lymphocytes. correct answer: D

Which of these proteins functions to store or transport iron?

A. ferritin, hemosiderin, and transferrin B. hemosiderin C. hemoglobin D. ferritin E. transferrin correct answer: A

The enzyme that can digest fibrin and dissolve a clot is

A. fibrinase. B. phosphokinase. C. plasmin. D. thrombin. E. heparin. correct answer: C

The most abundant plasma protein is

A. fibrinogen. B. hemoglobin. C. transferrin. D. albumin. E. antibodies. correct answer: D

The process of fibrinolysis

A. forms thrombi. B. forms emboli. C. activates fibrinogen. D. dissolves clots. E. draws torn edges of damaged tissue closer together. correct answer: D

A hormone that stimulates production of granulocytes and monocytes is

A. multi-CSF. B. G-CSF. C. M-CSF. D. thymosin. E. GM-CSF. correct answer: E

The most numerous white blood cells in peripheral circulation are the

A. neutrophils. B. monocytes. C. lymphocytes. D. basophils. E. eosinophils. correct answer: A

Which organ secretes most of the plasma proteins

A. pancreas B. heart C. kidney D. liver E. brain correct answer: D

Consider the following results from a blood lab test. Which value is most likely abnormal

A. platelets — 280,000/µl B. hematocrit — 44 percent C. leukocytes — 8600/µl D. hemoglobin — 10.7 g/100 ml E. RBCs — 5.2 million/µl correct answer: D

Platelets are

A. red cells that lack a nucleus. B. large cells with a prominent, concave nucleus. C. blue cells that have a nucleus. D. cytoplasmic fragments of large cells. E. tiny cells with a polynucleus. correct answer: D

Each of the following is a characteristic of whole blood, except a

A. temperature of approximately 38 degrees Celsius. B. viscosity about the same as water. C. built-in system for clotting. D. red color from hemoglobin. E. pH of 7.4. correct answer: B

Blood type is identified primarily by

A. the Kahn blood group. B. both the ABO and Rh blood groups. C. the HB blood system. D. the ABO blood group. E. the Rh blood group. correct answer: B

The combination of plasma and formed elements is called

A. whole blood. B. extracellular fluid. C. serum. D. packed blood. E. lymph. correct answer: A

Type AB blood has which of the following characteristics

A RBCs have no surface antigens and both anti-A and anti-B antibodies in the plasma. B. RBCs have the A and the B surface antigens and the plasma has anti-A and anti-B antibodies. C RBCs have the A antigen and the plasma has the anti-B antibody. D RBCs have the Rh positive antigens and the anti-D plasma antibodies. E. RBCs have both the A & B surface antigens and no ABO plasma antibodies. correct answer: E

Which of the following statements about blood is false?

A. The normal pH of blood is 6.8 to 7.0. B. Blood contains buffers that control pH. C. Cells in blood comprise the formed elements. D. Blood is about 55 percent plasma. E. Blood is more viscous than water. correct answer: A

Proteins in the blood for defense are called

A. albumins. B. immunoglobulins. C. fibrinogens. D. ferritins. E. hemosiderins. correct answer: B

The most abundant proteins in blood plasma are

A. albumins. B. transport proteins. C. lipoproteins. D. fibrinogens. E. globulins. correct answer: A

The common pathway of coagulation begins with the

A. conversion of fibrinogen to fibrin. B. activation of Factor X, production of prothrombin activator. C. activation of a proenzyme exposed to collagen. D. release of tissue factor by damaged endothelium. E. sticking of platelets to damaged tissue. correct answer: B

The percent fraction of formed elements relative to whole blood is the

A. differential cell count. B. viscosity. C. packed volume. D. specific gravity. E. hematocrit. correct answer: E