Attic Area Of Tympanic Membrane

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 either or both of these parts may become retracted.

Attic area of tympanic membrane.

The basal cells of germinal layer of skin proliferate under the influence of infection and lay down keratinising squamous epithelium. The pars tensa anterior to the malleus type i posterior to the malleus subdivided into upper and lower. It also serves as the lateral wall of the tympanic cavity separating it from the external auditory canal the membrane lies across the end of the external canal and. Among factors that cause obstruction of the tympanic isthmus are mucosal folds variations inflammatory webs and exudate retracted tympanic membrane diseased attic mucosa and cholesteatoma.

Tympanic membrane retraction describes a condition in which a part of the eardrum lies deeper within the ear than its normal position. Tympanic membrane perforations a perforation is a hole in the tympanic membrane that is visible through the otoscope. 5 ruedi s theory. Attic cholesteatoma with closure of the anatomy physiology of the ear ento key pain in the ear ento key middle ear partments springerlink unit five tympanic membrane perforations.

Attic area of tympanic membrane. Invagination of tympanic membrane from the attic or part of pars tensa in the form of retraction pockets lead to the formation of cholesteatoma. July 6 2019 by zamira leave a comment. This section contains information on acute traumatic central marginal attic and total perforations along with information on the monomeric tympanic membrane.

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. Anatomy physiology of the ear ento key. The classification was developed from observations dividing the drum into 3 areas.