PPT-Tympanic membrane perforation

A  perforated eardrum  or  punctured eardrum  is a rupture or perforation hole of the eardrum which can occur as a result of  otitis media ear infection trauma eg by trying to clean the ear with sharp instruments explosion noise or surgery accidental creation of a rupture. . Clark . W. Walker, MD, FACS. Lone Tree, CO. cwalker@integratedENT.com. . Audiologists and Otolaryngologists. Denver Hearing Specialists, Lone Tree, Colorado. Diane Krieger-Arenberg, Au.D.. meatus.tsound. . From. the . meatus. , the external auditory canal passes inward to the tympanic membrane (eardrum(-. The middle ear is an air-filled cavity in the temporal bone that opens via the auditory (. BIO 211:. Dr. Lawrence G. Altman. www.lawrencegaltman.com. Some illustrations are courtesy of McGraw-Hill.. The. EAR. Part 1 of 2. SPECIAL. . SENSES. LABS. :. . . Dr. Lawrence G. Altman. www.lawrencegaltman.com. The ear consists of 3 different sections. 1. The External Ear. 2. The Middle Ear. - The Auditory . Ossicles. 3. The Inner Ear. . Anatomy of the Ear. Vestibulocochlear . nerve (VIII). EXTERNAL EAR. Cholesteatoma is an abnormal . squamous epithelium. skin growth often found behind the eardrum in the . middle ear. .. It can erode and destroy structures within the middle ear and cause hearing loss as well as many CNS complications including brain abscess and meningitis.. titis media is often associated withlong-standing otitis externa in dogsAccumulated bacteria and debris in thehorizontal ear canal can eventually access theycausing middle ear infectionAs the infectio The ear is a sensitive organ of the human body. It is mainly concerned with detecting, transmitting and transducing sound. Maintaining a sense of balance is another important function performed by the human ear.. Elizabeth Rose. Royal Victorian Eye and Ear Hospital. Royal Children’s Hospital. Dorland’s Medical Dictionary. A “look and learn” lecture. Middle-ear conditions. Management of otitis media . Retraction pocket is the invagination of tympanic membrane into the middle ear space. It is frequently a result of chronic OME or prolonged dysfunction of the Eustachian tube. . Chronic retraction pocket. INTRODUCTION. The ear is the organ for collection, conduction, modification, amplification and analysis of . sound. . reaching it. It not only receives sound, but also aids in . balance. . and body position.. Ear. The ear converts changes in pressure in the air to changes in the electrical activity of neurons. . The . human ear can detect sound frequencies between 20 and 20 000 Hz.. Anatomists distinguish the outer ear, the middle ear, and the inner ear. Basic Ear Anatomy • Expected outcomes • To understand the hearing mechanism • To be able to identify the structures of the ear Development of Ear 1 . Pinna develops from 1 st & 2 nd Branch Although middle ear trauma is not the �rst priority in the context of life-threatening injuries, the ear is particularly susceptible to damage and easily forgotten in patients with multiple otological. anatomy for undergraduate medical students). . Dr.Rafid. Y. . Jabbar. . ENT Lecturer. MRCS,DOHNS,FRCS(Glasgow). Temporal bone . Ear divisions :. The ear consists of three main parts :.