23/02/2026
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Tympanic membrane:
• The tympanic membrane is a thin, translucent partition between the external acoustic meatus and the middle ear.
• Color:shiny & pearly grey
• Umbo:marked area by tip of thre malleus
• Cone of light:bright light at anteroinferior quadrent
• Shape: Oval shaped.
• Measurement: 9 - 10 mm.
• Position: The membrane is placed obliquely, making an acute angle of about 55° with the floor of the external acoustic meatus.
• Newborn membrane almost horizontal so child can hear noisy sound better than adult
