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Tympanic membrane retraction describes a condition in which a part of the eardrum lies deeper within the ear than its normal position.. The eardrum comprises two parts: the pars tensa, which is the main part of the eardrum, and the pars flaccida, which is a smaller part of the eardrum located above the pars tensa.
The larger pars tensa consists of three layers: skin, fibrous tissue, and mucosa. Its thick periphery forms a fibrocartilaginous ring called the annulus tympanicus or Gerlach's ligament. [5] while the central umbo tents inward at the level of the tip of malleus. The middle fibrous layer, containing radial, circular, and parabolic fibers ...
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Henry Jones Shrapnell (1792–1834) was an English anatomist.For a period of time during his career he was a colleague to Edward Jenner (1749–1823), creator of the vaccine for smallpox.
The Serbian Wikipedia (Serbian: Википедија на српском језику, Vikipedija na srpskom jeziku) is the Serbian-language version of the free online encyclopedia Wikipedia. Created on 16 February 2003, it reached its 100,000th article on 20 November 2009 before getting to another milestone with the 200,000th article on 6 July ...
In human anatomy, the pars flaccida of tympanic membrane or Shrapnell's membrane (also known as Rivinus' ligament) is the small, triangular, flaccid portion of the tympanic membrane, or eardrum. It lies above the malleolar folds attached directly to the petrous bone at the notch of Rivinus .
Myringoplasty is the closure of the perforation of pars tensa of the tympanic membrane. [1] [2] [3] When myringoplasty is combined with removal of scar tissue, it is called tympanoplasty. The operation is performed with the patient supine and face turned to one side. The graft material most commonly used for the surgery is temporalis fascia.
In human anatomy, Prussak's space is the small middle ear recess, bordered laterally by the flaccid part of Shrapnell's membrane, superiorly by the scutum (a sharp bony spur that is formed by the superior wall of the external auditory canal) and lateral malleal ligament, inferiorly by the lateral process of the malleus, and medially by the neck of the malleus.