Which does not cause relaxation of urinary bladder ?
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.
Sympathetic Stimulation
Muscarinic receptors
Beta receptors
None of the above