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