The spleen
A) filters blood instead of lymph.
B) contains macrophages in the red pulp that remove foreign substances and worn-out red blood cells.
C) has white pulp surrounding the central arteries.
D) has red pulp surrounding the venous sinuses.
E) has all of these characteristics.
Correct Answer:
Verified
Q44: Nonmotile cells in connective tissue that release
Q45: Helper T cells are activated
A)by cytokines.
B)by macrophages
Q46: All the innate immunity mechanisms below are
Q47: Macrophages
A)are monocytes that leave the blood and
Q48: Complement proteins
A)promote inflammation and phagocytosis when activated.
B)consist
Q50: In addition to symptoms of local inflammation,systemic
Q51: T cells originate in the _ and
Q52: In addition to leaving the blood in
Q53: Cell-mediated immunity
A)is involved with allergic reactions.
B)is most
Q54: Signs and symptoms of local inflammation include
A)redness
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