Bottom Possesses "unilateral - Passableness". Pressure Suffices For

Bottom possesses "unilateral - passableness". Pressure suffices For advancement of a contained gullet through penalties-diju in 4 mm hg, in a return direction movement is possible only at increase of pressure to 80 mm hg In norm pressure in the field of physiological above, than in a gullet and a bottom of a stomach, and is equal on the average 22 - 28 mm hg It are caused by the tonic reduction of circular muscular - fibres interfering zheludochno-pishchevodnomu a reflux. The - greatest value has a part physiological - which interferes with a reflux at a considerable difference of pressure in a chest and belly cavity. The normal anatomic arrangement of a gullet in relation to a diaphragm is very important for correct functioning of the closing mechanism physiological . Hit gastric - contained in a gullet is interfered also presence of "the mucous socket" in the field of pishchevodno-gastric , by an acute angle of Gisa, presence of the valve of Gubarev - folds of a mucous membrane at a junction of a gullet with a stomach, a switching reflex on at irritation of a mucous membrane department of a stomach food, etc.