part of part of continuous_with adjacent_to contributes to morphology of pylorus pyloric sphincter (...) the adult Xenopus stomach exhibits both glandular and aglandular regions and a distinct pyloric sphincter similar to that of the amniotic vertebrates (...).[uncertain][VHOG] A strong ring of smooth muscle at the end of the pyloric canal which lets food pass from the stomach to the duodenum. It receives sympathetic innervation from the celiac ganglion[WP]. AAO:0011093 EMAPA:19251 FMA:14916 MA:0002952 OpenCyc:Mx4rvly2ZZwpEbGdrcN5Y29ycA UBERON:0001202 UMLS:C0227238 VHOG:0001466 XAO:0000457 pyloric valve uberon duodenum sphincter muscle pyloric canal gastrointestinal sphincter