Lumbocostal arch
Arcus lumbocostalis
Definition
The lumbalcostal arch defines the dorsal edge of each crus of the diaphragm.
It is ventral to the psoas muscle and from this arch, the crura turn laterally toward the costal part.
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.
