Effects of selective alpha 1-, alpha 2-, beta 1-and beta 2-adrenoceptor stimulation on potentials and contractions in the rabbit heart.. Start studying adrenergic receptors (alpha 1, alpha 2, beta 1, beta 2). Learn vocabulary, terms, and more with flashcards, games, and other study tools.. Analysis of alpha 1 beta 1, alpha 2 beta 1 and alpha 3 beta 1 integrins in cell--collagen interactions: identification of conformation dependent alpha 1 beta 1 binding sites in collagen type I. D Gullberg , K R Gehlsen , D C Turner , K Ahlén , L S Zijenah , M J Barnes , and K Rubin. Alpha-1, Beta-1, Beta-2 Agonists. - B-2 agonist (short acting agent): causes vasodilation, decrease in BP elicits a reflex cardiac stimulation --> increase in pulse pressure.. Lets say that a quadratic equation has roots and . The product of the roots will be . Would that mean that the product is ? The sum would then be ? Are those correct? Also, I'm clueless about what to do if and come as roots. I know the product will be but the sum comes out as something seemingly unusable. for example I say Soo would that make ???. The beta-2 adrenergic receptor (β2 adrenoreceptor), also known as ADRB2, is a cell membrane-spanning beta-adrenergic receptor that interacts with (binds) epinephrine, a hormone and neurotransmitter (ligand synonym, adrenaline) whose signaling, via a downstream L-type calcium channel interaction, mediates physiologic.