<prompt> Kiesselbachs plexus is formed by septal branches all except?Posterior ethmoidal arterySphenopalatine arteryAnterior ethmoidal arteryGreater palatine artery  <response>: Ans. A. Posterior ethmoidal arteryKiesselbachs plexus, which lies in Littles area, is a region in the anteroinferior part of the nasal septum where four arteries anastomose to form a vascular plexus. The arteries are:a. Anterior ethmoidal artery branch of the ophthalmic arteryb. Sphenopalatine artery terminal branch of the maxillary arteryc. Greater palatine artery from the maxillary arteryd. Septal branch of the superior labial artery from the facial artery 