Home › TS EAMCET › Biology › Chemical Coordination and Integration › Why do immune responses weaken in old people, ac…
Why do immune responses weaken in old people, according to endocrine physiology?
AThymus shrinks with age
BThyroid gland enlarges
CPancreas stops insulin
DPituitary doubles up
Answer & Solution
Correct answer: A. Thymus shrinks with age
The thymus degenerates with age, lowering thymosin output and weakening immune responses.
Related questions
Which cytokine secreted by some tumours suppresses macrophages and lymphocytes?The tumour surveillance role of the immune system mainly uses which cells?Gamma delta T cells recognise antigens that are not bound to what?Which drugs are the most powerful anti-inflammatory agents?A phagosome fuses with a lysosome to form what structure?Which secretion acts as a chemical defence against ingested pathogens in the stomach?Which enzyme in saliva and tears acts as an antibacterial chemical barrier?Where were toll-like receptors first discovered?