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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. [5]
Kiesselbach's plexus is an anastomotic arterial network (plexus) of four or five arteries in the nose supplying the nasal septum. It lies in the anterior inferior part of the septum known as Little's area, Kiesselbach's area, or Kiesselbach's triangle. It is a common site for anterior nosebleeds.
This area is richly endowed with blood vessels (Kiesselbach's plexus). This region is also known as Little's area . Bleeding farther back in the nose is known as a posterior bleed and is usually due to bleeding from Woodruff's plexus , a venous plexus situated in the posterior part of inferior meatus. [ 17 ]
Most nosebleeds occur in Kiesselbach's plexus, a vascular plexus in the lower front part of the septum involving the convergence of four arteries. A smaller proportion of nosebleeds that tend to be nontraumatic occur in Woodruff's plexus. Woodruff's plexus is a venous plexus of large thin-walled veins lying in the posterior part of the inferior ...
Wilhelm Kiesselbach (1 December 1839 – 4 August 1902) was a German otolaryngologist born in Hanau. From 1859 he studied medicine at the universities of Göttingen , Marburg and Tübingen . In 1877/78 he worked as assistant under Wilhelm Olivier Leube in the polyclinic at the University of Erlangen .
Beginning in 1937 Batson began a series of injection experiments investigating the anatomy and physiology of the cerebrospinal venous system. [2] His carefully documented results demonstrated the continuity of the venous systems of the brain and the spine, as injections of contrast dyes into venous systems feeding into the spinal venous plexus led to the appearance of contrast material in the ...
Woodruff's long career in journalism has included time at CNN and NBC News. She was host of PBS' “NewsHour” between 2013 and 2022, before stepping down for a reporting project.
[1] [2] Blood thinners may be used to treat or prevent blood clots. [1] The condition affects about 1% of the population. [4] It is more common in women than men and it occurs most commonly between 20 and 50 years of age. [1] The condition was first described in 1818 and the current term "thoracic outlet syndrome" first used in 1956. [2] [6]