Letlapa la sefene sa diaphragm le entsoe ka li-diaphragm tse peli le poleiti ea mantlha e kopantsoeng ke ho tiisa mocheso o phahameng oa mocheso.
Ha mecha ea phatlalatso ea ka ntle (e kang metsi kapa moea o petelitsoeng) e hlahisoa ka kamoreng pakeng tsa poleiti ea mantlha le lera, lera le tla bulged le ho hatella kaka ea filthara ka kamoreng, ho finyella dehydration ea bobeli ea extrusion ea kaka ea filthara.