Little's area (Kiesselbach's plexus) is the most common site of anterior epistaxis. Which of the following arteries does NOT contribute to this plexus?

• A Anterior ethmoidal artery
• B Septal branch of superior labial artery
• C Greater palatine artery
• D Posterior ethmoidal artery ✓

Explanation

Little's area (Kiesselbach's plexus) is supplied by contributions from the anterior ethmoidal artery (from the ophthalmic artery), the septal branch of the superior labial artery (from the facial artery), the septal branch of the sphenopalatine artery, and the greater palatine artery ascending through the incisive canal. The posterior ethmoidal artery supplies the superior nasal mucosa and posterior septum but does not contribute significantly to Little's area. It is a common point of anastomosis between internal (ophthalmic) and external (maxillary) carotid systems.

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.