Tonsils reach their maximum size by
Tonsils are most active from 4 to 10 years of age. Involution begins after pubey resulting in a decrease of B-cell production and a relative increase in the ratio of T to B cells. (Ref: Diseases of Ear, Nose and Throat, PL Dhingra; 7th edition ,pg no. 292)
1 year
3 years
5 years
12 years
Pharynx