Which of the following cells develop into macrophages?
-monocytes
T cells function to
-destroy body cells infected with viruses.
If examination of the blood reveals a large number of immature leukocytes, the individual is probably suffering from
-leukemia.
What is the anatomical difference between T lymphocytes and B lymphocytes?
-They are structurally identical
In the body, erythrocytes are red because of the oxidized iron they contain. In stained blood smears, erythrocytes are
-pink from eosin.
The most common formed elements in the blood are
-erythrocytes.
Plasma minus clotting factors.
-serum
The least abundant white blood cell type is the
-basophil.
B cells fight infections by
-producing antibodies.
The replacement of red bone marrow with yellow bone marrow in the limbs occurs
-between 8 and 18 years of age.
Which cells fight infection by producing antibodies?
-B lymphocytes
Leukocytes, ordered from most to least abundant, are the
-neutrophils, lymphocytes, monocytes, eosinophils, and basophils.
Most abundant formed element.
-erythrocyte
Elevated numbers of reticulocytes may indicate
-a person is adapting to life at high elevations
In the cell line that forms erythrocytes in red bone marrow, all of the following occur except that
-lysosome-like granules accumulate.
Together, leukocytes and platelets constitute roughly which percentage of whole blood volume?
-1%
Along with leukocytes, these contribute less than 1% of whole blood.
platelets
Which type of connective tissue occurs in the bone marrow cavity?
-reticular
Fraction of blood comprised by erythrocytes.
-hematocrit
The formed element that is flattened, circular, lacks a nucleus, lacks mitochondria or ribosomes, and is red because of the presence of hemoglobin is
-an erythrocyte.
The blood's globulins include
-antibodies
Reticulocytes are precursors to mature
-erythrocytes.