18.2 True/False Questions
1) Blood serum is plasma from which albumin has been removed.
2) Hematocrit is the percentage of blood consisting of erythrocytes.
3) Elevated numbers of band cells in differential WBC counts is considered an indicator of infection.
4) All granulocytes have lobed nuclei and are phagocytic in function.
5) Mast cells and basophils both release histamine at the site of inflammation.
6) B lymphocytes attach to non-self cells and cause them to lyse.
7) The least abundant type of leukocyte is the monocyte.
8) Leukocytes function primarily within the bloodstream.
9) In adults, red bone marrow occurs in the skull, girdles, and diaphysis of the long bones.
10) Erythrocytes and neutrophils both arise from myeloid stem cells.
11) The reticulocytes secrete the reticular fiber network of bone marrow.
12) Platelets are cell fragments arising from megakaryocytes located just outside the sinusoids.
13) The liver and spleen are the major blood-producing organs between the second and the seventh month of fetal development.
14) The most abundant type of leukocyte is the neutrophil.
15) Erythrocytes eject their nuclei and other organelles prior to maturity.