Little's area (Kiesselbach's plexus) is the most common site of anterior epistaxis. Which vessels do NOT contribute to this anastomotic plexus?

• A Anterior ethmoidal artery
• B Superior labial artery (branch of facial artery)
• C Sphenopalatine artery
• D Posterior ethmoidal artery ✓

Explanation

Kiesselbach's plexus at Little's area on the anteroinferior nasal septum receives contributions from: anterior ethmoidal artery, superior labial artery (facial artery), septal branch of the sphenopalatine artery, and greater palatine artery. The posterior ethmoidal artery supplies the roof and posterior-superior septum but does NOT contribute to Little's area — it is not part of the Kiesselbach anastomosis.

Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.