Pars flaccida of tympanic membrane

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. On the inner surface of the tympanic membrane, the chorda tympani crosses this area.

Pars flaccida of tympanic membrane
Right tympanic membrane as seen through a speculum.
Right tympanic membrane as seen through a speculum.
Details
Identifiers
Latinpars flaccida membranae tympanicae
TA98A15.3.01.053
TA26871
FMA56721
Anatomical terminology

The name Shrapnell's membrane refers to Henry Jones Shrapnell,[1] and the name Rivinus' ligament to Augustus Quirinus Rivinus.[2]

References

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  1. ^ "Who Named It?, Definition of Shrapnell's membrane". Archived from the original on 2014-07-27. Retrieved 2007-02-04.
  2. ^ Tainmont, J.; Hassid, S.; Tainmont, S.; Choufani, G. (2003). "General Shrapnel and the 'unfortunate' Dr. H. J. Shrapnell". Acta Oto-rhino-laryngologica Belgica. 57 (1): 70. PMID 12642955.