Lymphatic System
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 1. The specific type of acquired immunity that a fetus obtains from maternal antibodies that cross
the placenta is called:
a.
artificially acquired
passive immunity
c.
naturally acquired
passive immunity
b.
artificially acquired
active immunity
d.
naturally acquired
active immunity
____ 2. An isograft is a tissue graft donated by:
a.
a parent
c.
an identical twin
b.
the same person
d.
an unrelated person
____ 3. The thymus gland is most active during:
a.
middle age
c.
infancy
b.
old age
d.
adolescence
____ 4. These release a chemical called perforin to target the cell’s nucleus and membrane, causing
disintegration:
a.
T cells
c.
Phagocytes
b.
B cells
d.
Natural Killer Cells
____ 5. Where are the tonsils located:
a.
throat
c.
beneath sternum
overlying heart
b.
armpits, groin, neck
d.
small intestine
____ 6. The body’s first line of defense against the invasion of disease-causing microorganisms is:
a.
natural killer cells
c.
phagocytes
b.
skin and mucous
membranes
d.
fever
____ 7. Which lymphoid tissues trap and remove bacteria entering the throat:
a.
tonsils
c.
thymus gland
b.
Peyer’s patches
d.
axillary lymph nodes
____ 8. This type of graft is taken from a different animal species and is never successful:
a.
autograft
c.
isograft
b.
xenograft
d.
allograft
