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Diaphragm anatomy, posterior view. The diaphragm is the white area at top, connected to surrounding muscles (red). Part of the spine is at bottom, and ribs at left and right. The relaxation and upwards movement of the diaphragm helps the lungs to deflate during respiration. This anatomical artwork is plate 78 from volume 2 (1831) of 'Traite complet de l'anatomie de l'homme' (1831-1854). This 8-volume anatomy atlas was produced by the French physician and anatomist Jean-Baptiste Marc Bourgery (1797-1849). The illustrations were by Nicolas-Henri Jacob (1781-1871).
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