Attic Tympanic Membrane

The tympanic cavity is subdivided into several parts defined in relation to the planes of the tympanic membrane.

Attic tympanic membrane.

This section contains information on acute traumatic central marginal attic and total perforations along with information on the monomeric tympanic membrane. The retracted segment of eardrum is often known as a retraction pocket. Mesotympanum directly medial to the membrane. Epitympanum attic epitympanic recess superior to the membrane.

It also serves as the lateral wall of the tympanic cavity separating it from the external auditory canal. The posterior and superior parts of the tympanic membrane are most commonly affected. The head of the club lies in a cavity of the middle ear above the tympanic membrane the attic where it is suspended by a ligament from the bone that forms the covering of the brain. If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.

It attaches to an incomplete ring of bone along the wall of the eac the tympanic annulus. Ppt c s o m clinical features powerpoint ation viktor s notes middle ear disorders impact of site and size pars tensa tympanic membrane unit five tympanic membrane perforations chronic suppurative ois media csom a middle ear mucosal. Impact of site and size pars tensa tympanic membrane. Left tympanic membrane showing attic perforation.

In other cases frequent ear infections can cause a tympanic membrane perforation. Some authors define three compartments 4. Here the head articulates with the incus which is cone shaped with the base of the cone articulating with the head of the malleus also in the attic. The tympanic membrane is shaped like a flat cone pointing into the middle and inner ear.

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. Tympanic membrane perforations a perforation is a hole in the tympanic membrane that is visible through the otoscope. A tympanic membrane perforation can have many causes. Tympanic membrane also called eardrum thin layer of tissue in the human ear that receives sound vibrations from the outer air and transmits them to the auditory ossicles which are tiny bones in the tympanic middle ear cavity.

While this is rare it is seen from time to time. Either or both of these parts may become retracted. In people who have had ear tubes tympanostomy tubes a perforation can result when the eardrum does not close up after the tube comes out. The attic is just above the eardrum.

Hypotympanum inferior to the membrane. The terms atelectasis or sometimes adhesive otitis media.