《耳鼻喉科学 Otolaryngology》课程教学课件（PPT讲稿）nose_3 Epistaxis（nosebleed）

Epistaxis(nosebleed)

Epistaxis(nosebleed)

IntroductionBleeding flowes from nose is calledepistaxis . It is fairly common and is seen inall age groups-children, adults and olderpeople. Most patients who develop epistaxisdo not seek medical attention because thebleed is minor and usually stops quicklyBut sometimes it treated as an emergency

Introduction Bleeding flowes from nose is called epistaxis . It is fairly common and is seen in all age groups-children, adults and older people. Most patients who develop epistaxis do not seek medical attention because the bleed is minor and usually stops quickly. But sometimes it treated as an emergency

LntroductionBleeding flowes from nose is calledepistaxis . It is fairly common and is seen inall age groups-children, adults and olderpeople. Most patients who develop epistaxisdo not seek medical attention because thebleed is minor and usually stops quickly. Butsometimes it treated as an emergency

Introduction Bleeding flowes from nose is called epistaxis . It is fairly common and is seen in all age groups-children, adults and older people. Most patients who develop epistaxis do not seek medical attention because the bleed is minor and usually stops quickly. But sometimes it treated as an emergency

LntroductionEpistaxis is a symptomand not a disease. We shouldpay attentiong to it to find anylocal or constitutional cause

Introduction Epistaxis is a symptom and not a disease. We should pay attentiong to it to find any local or constitutional cause

Blood supply of noseExternal carotid system:Branches of ophthalmic artery@Anterior ethmoidal②Posterior ethmoidal- Internal carotid system:1 Branches of facial artery:?superior labial artery2 Branch of internal maxillary artery@sphenopalatine artery@greater palatine artery@infraorbital artery

◼ External carotid system: Branches of ophthalmic artery ①Anterior ethmoidal ②Posterior ethmoidal ◼ Internal carotid system: 1 Branches of facial artery: ③superior labial artery 2 Branch of internal maxillary artery ④sphenopalatine artery ⑤greater palatine artery ⑥infraorbital artery Blood supply of nose

Blood supplyof nose Little's Area: In the anterior inferior part ofnasal septum. Four arteries--anteriorethmoidal, septal branch o f superior labial.septal branch o f sphenopalatine and thegreater palatine, anastomose here t o f o rm avascular plexus called "Kiesselbach'splexus

◼ Little’s Area: In the anterior inferior part of nasal septum. Four arteries-—anterior ethmoidal, septal branch o f superior labial, septal branch o f sphenopalatine and the greater palatine, anastomose here t o f o rm a vascular plexus called "Kiesselbach'splexus". Blood supply of nose

Blood supplyof noseWoodruff's Area: This vascular area is situatedunder the posterior end of inferior turbinatewhere sphenopalatine artery anastomoses withposterior pharyngeal artery

◼ Woodruff’s Area: This vascular area is situated under the posterior end of inferior turbinate where sphenopalatine artery anastomoses with posterior pharyngeal artery. Blood supply of nose

Little's area( 1. anterior ethmoidal2. Septal branch ofanastomosesuperior labial3. Septal branch ofsphenopalatine4.Septal branch of the greaterpalatine

Little’s area 1. anterior ethmoidal 2. Septal branch of anastomose superior labial 3. Septal branch of sphenopalatine 4.Septal branch of the greater palatine

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