<prompt> Insulin secretion is inhibited bySecretinEpinephrineGrowth hormoneGastrin  <response>: Epinephrine also known as adrenaline or adrenaline is a hormone and a neurotransmitter. Epinephrine has many functions in the body, regulating hea rate, blood vessel and air passage diameters, and metabolic shifts; epinephrine release is a crucial component of the fight-or-flight response of the sympathetic nervous system.Ref: Ganong;s review of medical physiology; 24th edition 