<prompt> Woodruffs plexus is located atAnterosuperior pa of noseAnteroinferior pa of nosePosteroinferior pa of nosePosterosuperior pa of nose  <response>: O Woodruffs plexus also called nasopharyngeal plexus is a confluence of vessels on the lateral wall of nose and is often implicated in posterior bleeds. O It is a venous plexus situated posterior to posterior end of Middle and inferior turbinate. In recent histological studies it is found to consist of thin walled vessels with very little muscle or fibrous tissue. O It is the most common site of posterior epistaxis in adults. A more recent study with endoscopic photography and anatomical micro-dissectionconfirmed that the plexus does indeed exist but showedit to be a venous plexus. 