The fallopian canalize and the ossicles hold been removed, and the promontory is now exposed. turn with the basic coil, the tube is completely drilled out. bony removal is carried bold around the internal artery artery, and inferiorly the bone removal extends to the inferior petrosal sinus and jugular bulb.
Facial Nerve Anatomy: Overview, Embryology of the Facial Nerve, Central Connections
The facial nerve, or os nerve (CN) VII, is the fascicle of surface expression. The pathways of the facial nerve are variable, and noesis of the key intratemporal and extratemporal landmarks is in essence for surgical physical diagnosis and uninjured and effective operative intervention in the head and neck. (See the image below.) The facial nerve is imperturbable of approximately 10,000 neurons, 7,000 of which are myelinated and render the nerves of nervus facialis expression.
Acoustic Neuroma: Practice Essentials, History of the Procedure, Epidemiology
Acoustic neuromas are intracranial, extra-axial tumors that arise from the Schwann cell sheath investment either the proprioception or cochlear nerve. As cure neuromas increase in size, they yet busy a biggest apportioning of the cerebellopontine angle. Acoustic neuromas account for just about 80% of tumors found within the cerebellopontine angle. In uncommon cases, a facial mettle neuroma, tube-shaped structure tumor, lipoma, or metastatic lesion is found inside the cerebellopontine angle.