isolated biopsy specimens of human peripheral arteries and veins , preincubated with 3h- ( - ) - noradrenaline ( na ) to label the neural stores of na , were used to study the beta-adrenoceptors previously found to increase the secretion of 3h-na evoked by electrical field stimulation of the adrenergic nerves of this tissue .
C0086418
human
C0001643
beta-adrenoceptors