- External ear:
Point of attachment of the handle of the malleus produces a projection at the centre of the tmpanic membrane called as umbo. Part of the membrane which lies above the umbo is called as pars flaccida. The remaining lower part is called pars tensa. The margins of the tympanic membrane attaches to the groove inside the temporal bone called as annulus.
- Middle ear
- Internal ear
All these parts have a bony portion and a membranous portion. Bony part is lined with periosteum and contains a fluid called perilymph. Membranous part is lined with epithelium and contains fluid called endolymph.