Woodruff's plexus was discovered by George H. Woodruff in 1949. The plexus is located below the posterior end of the inferior concha, on the lateral wall of the nasal cavity. [1] [2] [3] He described it as the naso-nasopharyngeal plexus. [1]
Woodruff's plexus is located on the lateral wall of the nasal cavity below the posterior end of the inferior nasal concha (turbinate). [3] The plexus contains both arteries and veins which lie in a thin mucosa. [4] The major arteries supplying the plexus are the sphenopalatine artery and ascending pharyngeal artery. [5] The internal maxillary vein is also within the plexus.
A nosebleed (epistaxis) usually occurs in the anterior part of the nose from an area known as Kiesselbach's plexus which consists of arteries. Woodruff's plexus is a venous plexus in the posterior part and a nosebleed here accounts for only between 5 and 10 per cent of nosebleeds. Older adults are most often affected. [6]
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Posterior nasal packing is needed for posterior epistaxis.