Costal part
Pars costalis
- Related terms: Costal part of diaphragm
Definition
The costal part of the diaphragm corresponds to the second peripheral muscle fibers part located laterally to the central tendon.
Origin: Ventral face of the lumbar vertebrae
Insertion: Inner face of ribs and costal cartilage
Action: Inspiration
Description:
Its fibers are radiated and almost parallel. It starts from digitations that insert themselves on the inner side of the ribs and costal cartilage. Depending on the species, the bundles are more or less thick.
References
Barone R. Anatomie comparée des mammifères domestiques, Tome 2, Arthrologie et myologie, 4th edition, Vigot, Paris, 2017.
Sisson S, Grossman JD. The anatomy of the domestic animals. 5th ed. Philadelphia: W.B. Saunders; 1975.
Evans HE, de Lahunta A. Miller’s anatomy of the dog, 4th edition, Elsevier Saunders, St Louis, 2012.
