43484 mbs 050

MY BREATHING SYSTEM

diaphragm which is brought into a nearly vertical position when the ribs are contracted, and into an almost horizontal position when the ribs arc expanded and raised, whilst the central part, including the domes, will move up and down without materially altcring its shape. The skcleton-likc Fig. cj shows tliesc movements. When the points A and B ol the ribs move ontwards and upwards to a and b respec-

Fig. 9.—Skj-lkton-like Ii i.cstratios of thf. way in wniCH thf Ribs moye the Diaphragm. accokimng

TO THE Al'TIIOR’s TlIEORY

tively, the domes will sink, but arc cpiite able to kecp their shape.

In the photographs of Fig. xo, a quitc practical demon-stration is given of the rclation between the movements of ribs and diaphragm respectively. Any reader possessing a carpenter’s rulc can try this experhnent for himself, and thus becomc convinced of the soundness of my theory, which cxplains these movements in accordance with natural laws, whilst all former theories are at variance with these laws.

The musclcs which move the ribs are the various inter-costal muscles and the serratus major.