Posterior ethmoidal may refer to:
- Posterior ethmoidal artery, an artery of the head which supplies the nasal septum
- Posterior ethmoidal foramen
- Posterior ethmoidal nerve, a branch of the nasociliary nerve
- Ethmoidal veins, the venae comitantes of the ethmoidal arteries
This disambiguation page lists articles associated with the title Posterior ethmoidal.
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