Middle Ear Anatomy
Middle Ear Anatomy : # 3 parts : i) mesotympanum (6mm) ii) epitympanum ( a/k/a attic 2mm ) iii) hypotympanum (4mm) # Bone which covers the attic is called Scutum . # 6 walls of middle ear : i) Roof = Tegmen tympani , above the roof lies the dura of temporal bone ii) Floor = below the floor lies Jugular bulb ( dilatation of lateral sinus ) iii) Anterior wall = 2 opening : a) for tensor tympani muscle ( supplied by mandibular division of Trigeminal Nerve ) ...
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