Ethmoidal foramen
Foramen ethmoidale
Definition
The ethmoidal foramen is a small opening located rostrally to the optic canal, belonging to the frontal bone. It is located in the suture between the presphenoid bone and the frontal bone.
In carnivores, this foramen is double and is known as the ethmoidal foramina. However, these two foramina may merge in some individuals.
The ethmoidal foramen contains the external ethmoidal vessels and the ethmoidal nerve.
References
Barone R. Anatomie comparée des mammifères domestiques, Tome 1, Ostéologie, 5th edition, Vigot, Paris, 2017.
Evans HE, de Lahunta A. Miller’s anatomy of the dog, 4th edition, Elsevier Saunders, St Louis, 2012.
