| muscarinic receptors | Membrane-bound proteins whose extracellular domain contains a recognition site for acetylcholine (ACh); combination of Ach with the receptor initiates a physiologic change (slowing of heart rate, increased glandular secretory activity and stimulation of smooth muscle contractions); changes are observed after treatment with the mushroom alkaloid, muscarine. Muscarinic receptors are to be distinguished from nicotinic receptors. (05 Mar 2000) |
|---|---|
| muscarinism | Mushroom poisoning, characterised by gastrointestinal upset, liver andkidney damage, central nervous system effects and damage, and possiblydeath. (09 Oct 1997) |
| muscat | <botany> A name given to several varieties of Old World grapes, differing in colour, size, etc, but all having a somewhat musky flavor. The muscat of Alexandria is a large oval grape of a pale amber colour. Alternative forms: muskat. Origin: F. See Muscadel. Source: Websters Dictionary (01 Mar 1998) |