The diaphragm (from old Greek διάφραγμα diáphragma „partation wall“) is a muscle-tendon plate, which separates the chest from the abdominal cavity. It has a dome like shape and is one of the most important breathing muscles. The muscle contraction of the diaphragm leads to an inhalation (Inspiration). In humans it is 3 to 5 mm thick and in resting state produces 60 to 80 % of the muscle work needed for Inspiration.
Origin
Lubar part (Pars lumbalis): Lumbar vertebra
Rip part(Pars costalis): Inside the seventh to the last rip
Sernum part (Pars sternalis): Sternum (Processus xiphoideus)
Projection
Centrum tendineum
Function
Inspiration (Inhalation)
Innervation
Nervus phrenicus aus dem Plexus cervicalis
Spinal Segments
C3–C5