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 | |
| Latin | pars flaccida membranae tympanicae |
| TA98 | A15.3.01.053 |
| TA2 | 6871 |
| FMA | 56721 |
| Anatomical terminology | |
The name Shrapnell's membrane refers to Henry Jones Shrapnell,[1] and the name Rivinus' ligament to Augustus Quirinus Rivinus.[2]
References edit
- ^ "Who Named It?, Definition of Shrapnell's membrane". Archived from the original on 2014-07-27. Retrieved 2007-02-04.
- ^ 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.
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