The tonsils are a [[Secondary Lymphoid Tissue - Anatomy & Physiology|secondary lymphoid tissue]] and [[Lymphocytes - WikiBlood#B cells|B cells]] in the tonsils become committed to synthesise IgA. | The tonsils are a [[Secondary Lymphoid Tissue - Anatomy & Physiology|secondary lymphoid tissue]] and [[Lymphocytes - WikiBlood#B cells|B cells]] in the tonsils become committed to synthesise IgA. |