Ethmoidal foramen
Foramen ethmoidale
Definition
Below and caudally to the trochlear fovea of the orbital surface of the frontal bone, the ethmoidal foramen (Foramen ethmoidale) gives access to the rostral part of the cerebral cavity. This orifice is double in Carnivorous (ethmoidal foramina), while in Equidae, it is carved at the limit of the sphenoid and frontal bones and is therefore only marked by an incisure on the medial border of the frontal bone.
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