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) thyroid
B) thymus
C) adrenal
D) anterior pituitary

Question

Quizplus · Accepted Answer

The thymus gland plays an important role in the development and maturation of T-cells, which are essential for a strong immune response. However, the thymus gland atrophies with age, which can result in a decreased ability to produce new T-cells and a weakened immune response, especially to new antigens introduced by vaccines.

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