Acetylcholine is a chemical messenger, or neurotransmitter, that plays an important role in brain and muscle function. Imbalances in acetylcholine are linked with chronic conditions, such as Alzheimer ...

IT is generally believed that the process which initiates contraction in striated muscle is the depolarization of the excitable membrane of the muscle fibre, although the mechanism by which membrane ...

In recent years, nootropics, also called smart drugs, have gained popularity among people looking to improve their mental performance. Acetylcholine is a neurotransmitter, or brain chemical, that ...

THE smooth muscle of the taenia coli of the guinea pig is contracted by acetylcholine and is relaxed by adrenalin. It has been shown that acetylcholine contraction is associated with depolarization of ...

Metoclopramide (N-(diethylaminoethyl)-2-methoxy-4-amino-5-chlorobenzamide) has been investigated with human gastrointestinal smooth-muscle preparations in vitro. Small-intestinal and colonic circular ...

After every meal, the intestines perform an action called peristalsis - moving food through their hollow interiors with coordinated contractions and relaxations of the smooth muscle. For more than a ...