TOP GUIDELINES OF BOM MàNG

Exhalation takes place if the diaphragm relaxes, returning to its dome condition and pushing air out on the lungs. This rhythmic contraction and rest are essential for sustaining usual breathing and ensuring sufficient oxygen offer to the human body.Giai đoạn two : Màng bơm bên phải tạo lực hút chất lỏng đi vào buồng chứa b�