Main trunk of facial nerve pes

The facial nerve is one of the key cranial nerves with a complex and broad range of functions. Although at first glance it is the motor nerve of facial expression which begins as a trunk and emerges from the parotid gland as five branches see facial nerve branches mnemonic , it has taste and parasympathetic fibers that relay in a complex manner. The facial nerve is the only cranial nerve that may show normal post-contrast enhancement, although this applies only to the labyrinthine segment up to the stylomastoid foramen. Enhancement of the other segments of the facial nerve and other cranial nerves is considered pathologic. Refer to normal facial nerve enhancement on MRI for more information. Four cranial nerve nuclei contribute to the facial nerve: one motor, one secretomotor, and two sensory:.
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Anatomy of the facial nerve

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Facial nerve in parotidectomy: a topographical analysis

Damir Matic , John Yoo. Daniel Buchbinder. The facial nerve courses through the temporal bone and exits the stylomastoid foramen. The location and position of the facial nerve at the stylomastoid foramen is consistent. The main trunk branches at the pes anserinus into the upper and lower divisions. The traditional description includes five peripheral main branches of the facial nerve. These are: temporal, zygomatic, buccal, marginal, cervical branches.
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Facial nerve in parotidectomy: a topographical analysis

Sialosis or sialadenosis Case example of surgical treatment. Case Example Parotidectomy with sacrifice of buccal branch includes video demonstrating drain on postop day 1. Parotidectomy: case example - multiple Warthin's tumors. Case Example Parotid Lipoma-like Liposarcoma. The sample dictation below is not intended to be used as a template.
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Objective: Establish normative data concerning parotidectomy and facial nerve dissection and determine the relationship between the length of the facial nerve dissected during parotidectomy and subsequent facial nerve paresis. Study design: Prospective mapping of facial nerve during parotidectomy and comparison with postoperative facial nerve function. Methods: A prospective observational study of 78 patients who underwent 79 parotidectomy procedures. During each procedure, various topographical measurements were recorded. These measurements included the distance from the tragal pointer to the main trunk of the facial nerve, the distance to the pes anserinus, and length of each segmental branch dissected.
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