Ch. 18 reading quiz (blood)

T and B lymphocytes _____. a. are involved with specific immune function b. are most active against parasitic worms c. are polymorphonuclear d. proliferate excessively in leukopenia

A. are involved with specific immune function

which of the following statements about erythropoietin is true? a. it facilitates the proliferation and differentiation of the erythrocyte lineage b. it is a hemopoietic growth factor that prompts lymphoid stem cells to leave the bone marrow c. it is a hormone produced by the thyroid gland d. both a and b are true

A. it facilitates the proliferation and differentiation of the erythrocyte lineage

which of the following statements about albumin is true? a. it is the most abundant plasma protein b. it is produced by specialized leukocytes called plasma cells c. it draws water out of the blood vessels and into the body's tissues d. all of the above are true

A. it is the most abundant plasma protein

which of the following plasma proteins are produced by the liver? a. alpha globulin b. all of these are produced in the liver c. beta globulin d. fibrinogen

B. all of these are produced by the liver

a patient has been experiencing severe, persistent allergy symptoms that are reduced when she takes an antihistamine. before the treatment, this patient was likely to have had increased activity of which leukocytes? a. monocytes b. basophils c. neutrophils d. natural killer cells

B. basophils

the process by which leukocytes squeeze through adjacent cell sin blood vessel wall is called ____. a. cytoplasmic extending b. emigration c. positive chemotaxis d. leukocytosis

B. emigration

aging and damaged erythrocytes are removed from the circulation by ____. a. monocytes b. macrophages c. myeoblasts d. mast cells

B. macrophages

which of the formed elements arise from myeloid stem cells? a. B cells b. platelets c. all of the above d. natural killer cells

B. platelets

a patient has been suffering for 2 months with a chronic, watery diarrhea. A blood test is likely to reveal _____. a. polycythemia b. a hematocrit below 30 percent c. anemia d. hypoxemia

A. polycythemia

which if the following describes a neutrophil? a. abundant, agranular, especially effective against cancer cells b. rare, agranular, releases antimicrobial defensins c. abundant, granular, especially effective against bacteria d. rare, granular, contains multiple granules packed with histamine

C. abundant, granular, especially effective against bacteria

interleukins are associated primarily with which of the following? a. production of various lymphocytes b. immune responses c. all of the above d. inflammation

C. all of the above

prothrombin is converted to thrombin during the _____. a. extrinsic pathway b. formation of the platelet plug c. common pathway d. intrinsic pathway

C. common pathway

which of the following statements about blood is true? a. blood is slightly more salty than sweater b. blood is about 92 percent water c. blood is slightly more acidic than water d. blood is slightly more viscous than water

D. blood is slightly more viscous than water

thrombocytes are more accurately called _____. a. clotting factors b. megakaryoblasts c. megakaryocytes d. platelets

D. platelets

the first step in homeostasis is _____. a. conversion of fibrinogen to fibrin b. activation of the common pathway c. activation of the intrinsic pathway d. vascular spasm

D. vascular spasm