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Post-Test
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1
The white blood cell that forms antibodies necessary for immunity to specific diseases is the
A)basophil
B)lymphocyte
C)thrombocyte
D)eosinophil
2
The white cell that would increase in certain parasitic infections and allergic reactions is
A)neutrophils
B)eosinophils
C)monocytes
D)basophils
3
Diapedesis is
A)another term for phagocytosis by monocytes
B)the mechanism by which leukocytes recognize foreign substances to attack
C)the ability of leukocytes to leave blood vessels to reach the tissue
D)the production of blood cells by red bone marrow
4
The most mobile and phagocytic white cells are
A)neutrophils and monocytes
B)basophils and lymphocytes
C)eosinophils and basophils
D)monocytes and lymphocytes
5
Platelets
A)contain a large, multilobular nucleus similar to neutrophils
B)have a life span equal to that of erythrocytes
C)arise from marrow cells called megakaryocytes
D)develop in response to the hormone erythropoietin
6
A form of cancer characterized by uncontrolled production of white blood cells is
A)Hodgkin's disease
B)lymphoma
C)leukemia
D)anemia
7
The plasma protein produced by lymphatic tissues is
A)albumin
B)gamma globulin
C)fibrinogen
D)alpha globulin
8
Most nutrients found in the plasma were primarily absorbed from the
A)liver
B)stomach
C)small intestine
D)large intestine
9
A platelet plug begins to form when platelets are
A)exposed to air
B)exposed to a rough surface
C)exposed to calcium
D)crushed
10
Substances required to activate prothrombin include
A)calcium ions
B)potassium ions
C)platelets
D)glucose
11
Prothrombin is a plasma protein produced by the
A)kidney
B)small intestine
C)pancreas
D)liver
12
The clumping of erythrocytes when different blood types are mixed is due to interaction between antibodies in the plasma and
A)antigens in the plasma
B)antigens on the erythrocytes
C)antigens on leukocytes
D)antibodies on the erythrocytes
13
A person with type A blood has
A)antigen A and the anti-B antibody
B)antigens A and B
C)antibodies A and B
D)antigen B and anti-A antibody
14
The blood type that lacks antigens A or B is
A)type AB
B)type O
C)type A
D)type B
15
Antibodies for Rh appear
A)spontaneously as an inherited trait
B)only rarely for poorly understood reasons
C)in response to exposure to Rh antigens
D)only in Rh-negative infants
16
Blood is both heavier and more viscous than water.
A)True
B)False
17
Red blood cells in the blood lack a nucleus and therefore cannot synthesize proteins or reproduce.
A)True
B)False
18
Women typically have a higher red blood cell count than men.
A)True
B)False
19
The average life span of red blood cells is 120 days.
A)True
B)False
20
Erythropoietin is produced by the spleen.
A)True
B)False
21
Folic acid and vitamin B12 are necessary for DNA synthesis but the rapidity of red cell turnover makes this tissue especially vulnerable to deficiency.
A)True
B)False
22
Agranulocytes are white cells that have granular cytoplasm.
A)True
B)False
23
The five types of white blood cells are classified according to size, the nature of their cytoplasm, nuclei shape, and how they stain.
A)True
B)False
24
Granulocytes have a very long life span in circulating blood.
A)True
B)False
25
Lymphocytes account for 25-33% of circulating leukocytes and live for years.
A)True
B)False
26
A normal white count is 25,000 to 30,000 WBC's/cubic millimeter of blood.
A)True
B)False
27
A differential count lists the percentages of the types of leukocytes.
A)True
B)False
28
Basophils release heparin and histamine.
A)True
B)False
29
Globulins are plasma proteins that play a significant role in maintaining osmotic pressure.
A)True
B)False
30
Potassium is the most abundant electrolyte carried in plasma.
A)True
B)False
31
A blood clot forming abnormally in a blood vessel is a thrombus.
A)True
B)False





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