Pars flaccida

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
TA	A15.3.01.053
FMA	56721
Anatomical terminology []

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.

It is named after Henry Jones Shrapnell.