<prompt> A 72-year-old man presents to the emergency depament complaining of frequent nose-bleeds. What is the most likely site of acute epistaxis?TurbinateSeptumMaxillary sinusEthmoid sinus  <response>: The most common source of epistaxis is Kisselbachs vascular plexus on the anterior nasal septum. Predisposing factors include foreign bodies, forceful nose-blowing, nose-picking, rhinitis and deted septum 