Rib - 4
Costa - IV
Definition
The fourth rib is longer and thinner than the third. It articulates dorsally with the fourth thoracic vertebra and ventrally with the sternum through its costal cartilage.
References
Barone R. Anatomie comparée des mammifères domestiques, Tome 1, Ostéologie, 5th edition, Vigot, Paris, 2017.
International Committee on Veterinary Gross Anatomical Nomenclature. 2017. Nomina Anatomica Veterinaria. Sixth Edition. Ghent (Belgium).
