comparison of pa2 values of prazosin and yohimbine in both the tissues with those values found in the literature for these compounds in a variety of tissues containing alpha-1 or alpha-2 adrenergic receptor indicates that the postsynaptic alpha adrenergic receptor subtype in the human urinary bladder base and prostatic urethra is the alpha-1 type , not the alpha-2 type .
C0001639
alpha-2 adrenergic receptor
C0034784
alpha adrenergic receptor