Which does not cause relaxation of urinary bladder ?: (A) Sympathetic Stimulation, (B) Muscarinic receptors, (C) Beta receptors, (D) None of the above
Answer is B. Ans. is'b'i.e., Muscarinic receptorsSympathetic stimulation causes relaxation of bladder (detrusor muscle) beta-2 adrenoreceptors.Parasympathetic stimulation cause contraction of bladder (detrusor muscle) muscarinic M3 receptors.