Pharmacology A.N.S. eddbc9e8 Neurotransmitter released in response to raised blood pressure: A Acetylcholine B Adrenaline C Dopamine D Nor-adrenaline High-Yield Explanation Ans. A. AcetylcholineWhenever blood pressure rises, there is reflex stimulation of baroreceptors. These release Ach and depress the heart.