At age 85, Lyle's immune system does not respond to vaccines as well as it did when he was younger. The atrophy of which endocrine gland is likely responsible for this?
A) anterior pituitary
B) adrenal
C) thymus
D) thyroid

Question

Quizplus · Accepted Answer

The thymus is responsible for the maturation of T cells, which play a critical role in the immune response. As a person ages, the thymus gland atrophies, leading to a decrease in the production and maturation of T cells. This can result in a weakened immune response and a reduced ability to respond to vaccines.

At Age 85, Lyle's Immune System Does Not Respond to Vaccines