diaphragme pression dépression.

Séparation des mécanismes sus et sous diaphragmatiques.

 

Representation of the pressure spaces for pumps and the vacuum spaces for syringes.
With three centers, intra thoracic intra abdominal and the center of the anatomical pillars.
Increase of the intra thoracic volume, and reduction of the intra abdominal volume so that the diaphragm does not back up.
 You can see the cross-resistance of the anatomical pillars. Uniform intra thoracic depression and uniform intra abdominal pressure.
 Passage from the vertical through the transition zones C8 D1 and D12 L1.
 One can see with a thick thorax the difference between a uniform movement to the left, and an inspiratory outflow abdominal diaphragm over the umbilical. With a sub umbilical expiratory retraction which I call a functional abutment.
 With a flat chest a sub umbilical abdominal diaphragm exhaust and the umbilical supra umbilical withdrawal which is the functional pillar.
 The links between the lumbar curvature, the anatomical abutments and the tarsal tibio.

The horizontal shift of the thoracic and abdominal centres in scoliosis, which I call non-compensable.