Helper T cells are activated
A) by cytokines.
B) by macrophages and CD4.
C) through costimulation.
D) by antigens bound to the major histocompatibility complexes (MHCs) .
E) All of these are correct.
Correct Answer:
Verified
Q40: Chemical mediators of inflammation can produce
A)vasodilation.
B)chemotaxtic attraction
Q41: Chemical substances that are found on the
Q42: Concerning lymphocytes,
A)T cells are more numerous than
Q43: Innate immunity includes all of these EXCEPT:
A)physical
Q44: Nonmotile cells in connective tissue that release
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
Q49: The spleen
A)filters blood instead of lymph.
B)contains macrophages
Q50: In addition to symptoms of local inflammation,systemic
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