The Macroscopic Vascular Anatomy of the Equine Ethmoidal Area

B. T.L. Bell, G. J. Baker, L. C. Abbott, J. H. Foreman, S. K. Kneller

Research output: Contribution to journalArticlepeer-review


The vascular anatomy of the ethmoidal area in six normal horses and two normal ponies was studied using vascularcorrosion casts. The major arterial supply to the ethmoidal area sterns from an intracranial source. The internal and external ethmoidal arteries anastomose on the rostral intracranial surface of the cribriform plate to form the arterial ethmoidal rete which arborizes and passes through the perforations of the cribriform plate to supply the ethmoid labyrinth. A minor arterial supply to the ventral portion of the ethmoid labyrinth sterns from a small caudal nasal branch of the sphenopalatine artery. Multiple parallel venules drain the ethmoid labyrinth rostrally to its apex then join the venous drainage from the surrounding sinuses.

Original languageEnglish (US)
Pages (from-to)39-45
Number of pages7
JournalAnatomia, Histologia, Embryologia
Issue number1
StatePublished - Mar 1995

ASJC Scopus subject areas

  • veterinary(all)


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