Agonistic action at which of the following adrenergic receptor result in the reduction of excess secretion: (A) Beta 1 receptor, (B) Beta 2 receptor, (C) M2 receptor, (D) Alpha 2 receptor
Answer is D. Ref-KDT 6/e p146 Stimulation of Alpha 2 receptors located on ciliary epithelium reduces secretion of aqueous humor.