Main vascular supply of Little's area is all, except
The anteroinferior pa or vestibule of the septum contains anastomoses between the septal ramus of the superior labial branch of the facial aery, branch of sphenopalatine aery, greater palatine and of anterior ethmoidal aery. These form a large capillary network called kiesselbachs plexus. This is a common site of bleeding from the nose or epistaxis, and is known as little's area. Ref BDC volume3,6th edition pg 241
Septal branch of superior labial aery
Nasal branch of ethmoidal aery
Anterior ethmoidal nerve
Palatal branch of sphenopalatine
Head and neck