Attic Tympanic Membrane

It consists of three layers from external to internal.

Attic tympanic membrane.

Hypotympanum inferior to the membrane. Left tympanic membrane showing attic perforation. Impact of site and size pars tensa tympanic membrane. It attaches to an incomplete ring of bone along the wall of the eac the tympanic annulus.

The tympanic cavity is subdivided into several parts defined in relation to the planes of the tympanic membrane. While this is rare it is seen from time to time. Tympanic membrane retraction describes a condition in which a part of the eardrum lies deeper within the ear than its normal position. If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic.

Either or both of these parts may become retracted. Some authors define three compartments 4. Epitympanum attic epitympanic recess superior to the membrane. 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.

The posterior and superior parts of the tympanic membrane are most commonly affected. The tympanic membrane is shaped like a flat cone pointing into the middle and inner ear. The terms atelectasis or sometimes adhesive otitis media. The attic is just above the eardrum.

In other cases frequent ear infections can cause a tympanic membrane perforation. At the center of the concavity the deepest point is called the umbo. 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. Tympanic membrane perforations a perforation is a hole in the tympanic membrane that is visible through the otoscope.

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. Mesotympanum directly medial to the membrane. 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. 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. It also serves as the lateral wall of the tympanic cavity separating it from the external auditory canal.