No posterior Ethmoidal artery doesn’t take part in Kesselbach plexus

In Nasal septum blood supply posterior ethmoidal artery is contributing but does it also supplies keisselbach’s plexus along with anterior ethmoidal artery both are branches of internal carotid artery?

No posterior Ethmoidal artery doesn’t take part in Kesselbach plexus.

Kisselbachs plexus is formed by anterior ethmoidal artery(branch of opthalmic artery- ICA)

Sphenopalatine artery(branch of maxillary artery-ECA)

Greater palatine artery(branch of maxillary artery-ECA)

Septal branch of superior labial artery(branch of facial artery - ECA)

*posterior ethmoidal though a branch of opthalmic artery doesnot take part in kisselbachs plexus it supplies the posterior part

Kiesselbach’s plexus consists of the anastomosis of various arteries that supply the anteroinferior part of the nasal septum or vestibule. It is formed by 4 arteries -

  1. Anterior Ethmoidal; 2) Sphenopalatine; 3) Greater Palatine; 4) Superior Labial which gives the septal branch. Of these, the only branch of the Internal Carotid Artery would be the Anterior Ethmoidal Artery. The Posterior Ethmoidal Artery does not contribute to Kiesselbach’s Plexus. Thank you.