SO stands for various terms. Discover the full forms, meanings, and possible interpretations of SO across different fields and industries.
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.
DysfunctionMedicalMedicineAn 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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