Exam 1 Blood Practice Exam

These leukocytes produce heparin and histamine; they play a role in inflammatory and allergic reactions. A) basophils B) eosinophils C) lymphocytes D) monocytes E) neutrophils

A. basophils

In the process of hemopoiesis, myeloblasts give rise to A) erythrocytes. B) basophils. C) lymphocytes. D) monocytes. E) platelets.

B. basophils, as well as eosinophils and neutrophils

__________ are the smallest leukocytes; some produce antibodies. A) Basophils B) Eosinophils C) Lymphocytes D) Monocytes E) Neutrophils

C. lymphocytes

Old, damaged, or defective erythrocytes are removed from the blood by A) eosinophils. B) lymphocytes. C) macrophages. D) monocytes. E) neutrophils.

C. macrophages

Which of these leukocytes is an agranulocyte? A) basophil B) eosinophil C) neutrophil D) lymphocyte

D. Lymphocyte

Given these chemicals: 1. fibrin 2. fibrinogen 3. prothrombinase 4. thrombin 5. tissue factor Choose the arrangement that lists the chemicals in the order they are active during clot formation. A) 1,3,4,2,5 B) 2,3,4,5,1 C) 3,5,1,4,2 D) 4,3,2,5,1 E) 5,3,4,2,1

E. 5,3,4,2,1 Tissue factor Prothombinase Thrombin Fibrinogen Fibrin

__________ are phagocytic, have a trilobed nucleus, and make up the largest percentage of leukocytes. A) Basophils B) Eosinophils C) Lymphocytes D) Monocytes E) Neutrophils

E. Neutrophils

Cells in the red bone marrow that give rise to all the formed elements of the blood are called A) fibrinogens. B) globulins. C) megakaryoblasts. D) proerythroblasts. E) stem cells.

E. Stem cells

The process of erythropoiesis A) takes place in the spleen. B) requires vitamin B12 and folate. C) is inhibited by erythropoietin. D) is stimulated when oxygen decreases in the blood. E) both b and d

E. both b and d

These leukocytes produce enzymes that reduce the inflammatory response and are associated with allergies or parasitic infections. A) basophils B) eosinophils C) lymphocytes D) monocytes E) neutrophils

Eosinophils