What is that? /Definition Acetylcholine is one of the most important neurotransmitters both in humans and in many other organisms. In fact, acetylcholine already occurs in unicellular organisms and is considered to be a very old substance in the history of development. At the same time, it is the longest known neurotransmitter (it was first … Acetylcholine
Acetylcholine at the heart As early as 1921 it was discovered that a chemical substance must be present which transmits the electrical impulse transmitted via the nerves to the heart. This substance was initially called vagus substance after the nerve whose impulse it transmits. Later it was chemically correctly renamed acetylcholine instead. The nervus vagus, … Acetylcholine at the heart | Acetylcholine
Acetylcholine receptor The neurotransmitter acetylcholine unfolds its effect via various receptors, which are built into the membrane of corresponding cells. Since some of them are also stimulated by nicotine, they are called nicotinic acetylcholine receptors. Another class of acetylcholine receptors is stimulated by the poison of the fly agaric (muscarin). Muscarinic acetylcholine receptors (mAChR) belong … Acetylcholine receptor | Acetylcholine
