the concentration and location of adrenergic receptors in cat visual cortex have been determined by radioligand binding techniques using [ 3h ] prazosin ( alpha 1-adrenergic receptors ) , [ 3h ] yohimbine ( alpha 2-adrenergic receptors ) and [ 3h ] dihydroalprenolol ( beta-adrenergic receptors ) .
C0034783
adrenergic receptors
C0034785
beta-adrenergic receptors