With Advancing Age, the Lymphatic System ________

Question

With advancing age, the lymphatic system ________.
A) becomes less efficient at absorbing dietary lipids
B) ceases to transport lymph
C) produces an increasing number and variety of B-lymphocytes
D) is less responsive to antigens
E) All choices are correct.

Accepted Answer

With advancing age, the lymphatic system becomes less responsive to antigens. This means that the immune response becomes weaker with age. There is no evidence to suggest that the lymphatic system ceases to transport lymph or that it produces an increasing number and variety of B-lymphocytes. The system may become less efficient at absorbing dietary lipids, but this is not the primary effect of aging on the lymphatic system. Thus, option E (All choices are correct) is incorrect.