Kalmar "musculus sphincter pylori" tana nufin zobe na tsoka ko sphincter da ke kewaye da budewa tsakanin ciki da ƙananan hanji, wanda kuma aka sani da pylorus. Yana taimakawa wajen daidaita hanyar abinci daga ciki zuwa ƙananan hanji ta hanyar kwangila da annashuwa don ba da damar abinci ta hanyar sarrafawa. "Musculus" yana nufin "tsoka" a cikin harshen Latin, yayin da "sfincter" yana nufin wata tsoka mai da'irar da ke aiki a matsayin bawul don sarrafa kwararar ruwa ko daskarewa ta hanyar tsarin tubular a cikin jiki.