SO has various meanings in the Medical category. Discover the full forms, definitions, and usage contexts of SO in Medical.
The sphincter of Oddi, abbreviated as SO, is a muscular valve that controls the flow of digestive juices through the ampulla of Vater into the second part of the duodenum. It is named after Ruggero Oddi. The sphincter of Oddi is relaxed by the hormone cholecystokinin via vasoactive intestinal peptide.
MedicalAn amino alcohol containing a long, unsaturated hydrocarbon chain that is a component of the phospholipid sphingomyelin as well as glycolipids; serves a role analogous to that of glycerol in phosphoglycerides.
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