<prompt> Keisselbachs plexus is present at -Medial wall of nasopharynxLateral wall of nasal cavityAnteroinferior part of nasal septumPosterior part of the nasal cavity  <response>: Ans c i.e., Anteroinferior part of nasal septum o The anteroinferior part or the vestibule of the nasal septum contains anastomoses between the septal branches of the following 4 arteries :1. Anterior ethmoidal arterySphenopalatine arteryGreater palatine arterySuperior labial artery Branch of facial o These form a large capillary network called the Kiesselbachs plexus. This is a common site of anterior epistaxis and is known as the Littles area. 