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Woddruff in 1949 discovered plexus of prominent blood vessels lying inferior to posterior end of inferior turbinate. == Introduction == Woodruff's area is present posteriorly at inferior turbinate on the lateral nasal wall which is also called nasopharyngeal plexus. The sphenopalatine and posterior pharyngeal arteries anastamoses at the posterior end of inferior turbinate. Sphenopalatine artery enter the nasal cavity through the sphenopatine foramen located on lateral nasal wall within superior meatus usually between the middle turbinate and posterior horizontal end of the lamella of the superior turbinate. Generally this is just about the posterior end of the horizontal lamella of the middle turbinate and just posterior to the etmoidal crest of the perpendicular plate of the palatine bone. Posterior epistaxis occur primarily in old adult. Only about 5-10% of bleeding which occurs is from woodruffs area from the branches of internal maxillary artery including: *Posterior nasal, *Spheno-palatine and *Ascending pharyngeal artery. Anterior epistaxis is due to Kiesselbach's plexus and posterior epistaxis is due to Woodruff's plexus.Posterior nasal bleeds are difficult to treat because the bleeding area is not easily accessible.In patients with posterior bleeds, it is difficult to assess the amount of blood loss, because most of the blood is swallowed by the patient. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Woodruff's plexus」の詳細全文を読む スポンサード リンク
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