71) Giant cells located just outside of marrow sinusoids are called
A) megakaryocytes.
B) monoblasts.
C) myeloblasts.
D) reticulocytes.
72) Together, leukocytes and platelets constitute roughly which percentage of whole blood volume?
A) 45%
B) 55%
C) 1%
D) 10%
73) Which of the following is
not
a phase of erythropoiesis?
A) production of ribosomes
B) synthesis of hemoglobin
C) ejection of the erythrocyte's nucleus
D) production of vacuoles
74) Which of the following is the correct ranking of formed elements of blood by longevity (life span), from longest-lived to shortest-lived?
A) neutrophils, basophils, erythrocytes
B) basophils, erythrocytes, eosinophils
C) erythrocytes, platelets, neutrophils
D) monocytes, neutrophils, erythrocytes
75) Which of the following precursors of erythrocytes are in their proper order, from least to most differentiated?
A) proerythroblast, normocyte, reticulocyte
B) erythroblast, reticulocyte, normocyte
C) normocyte, proerythroblast, erythrocyte
D) reticulocyte, normocyte, erythroblast
76) Which of the following is
not
a committed cell in a blood cell line?
A) hemapoietic stem cell
B) proerythroblast
C) myeloblast
D) megakaryoblast
77) Graft-versus-host disease occurs in many marrow transplant patients because of the activity of
A) lymphocytes.
B) macrophages.
C) neutrophils.
D) platelets.
78) In the body, erythrocytes are red because of the oxidized iron they contain. In stained blood smears, erythrocytes are
A) also red from iron.
B) light blue from methylene blue.
C) purple from hematoxylin stain.
D) pink from eosin.
79) The defining characteristic of a reticulocyte in the blood is
A) collagen (reticular) fibers.
B) dark-staining nucleus.
C) numerous endocytic vesicles.
D) dark staining masses that represent degrading ribosomes.
80) A plasma protein involved in blood clotting is
A) a platelet.
B) globulin.
C) fibrin (and fibrinogen).
D) albumin.
81) In the differentiating cell line that leads to neutrophils, which of the following events occurs?
A) The nucleus assumes a band shape.
B) Hemoglobin accumulates in the cytoplasm.
C) Metamyelocytes become myeloblasts.
D) The cells temporarily have the specific granules of eosinophils.