Changes in the immune system that accompany aging include all of the following except
A) T cells becoming less responsive to antigens.
B) fewer cytotoxic T cells responding to infections.
C) decreased numbers of T helper cells.
D) more efficient secondary responses.
E) B cells are less responsive.

Question

Quizplus · Accepted Answer

The aging immune system generally exhibits a decrease in functioning, with T cells becoming less responsive to antigens, fewer cytotoxic T cells responding to infections, decreased numbers of T helper cells and B cells becoming less responsive. However, older individuals have been shown to have a more efficient secondary immune response, meaning that they are better able to fight off infections they have previously encountered.

Changes in the Immune System That Accompany Aging Include All