Dissection and Exposure of the Whole Course of Deep Nerves in Human Head Specimens after Decalcification

Autor: Robin Arnold, Longping Liu, Marcus Robinson
Rok vydání: 2012
Předmět:
Zdroj: International Journal of Otolaryngology, Vol 2012 (2012)
International Journal of Otolaryngology
ISSN: 1687-921X
1687-9201
DOI: 10.1155/2012/418650
Popis: The whole course of the chorda tympani nerve, nerve of pterygoid canal, and facial nerves and their relationships with surrounding structures are complex. After reviewing the literature, it was found that details of the whole course of these deep nerves are rarely reported and specimens displaying these nerves are rarely seen in the dissecting room, anatomical museum, or atlases. Dissections were performed on 16 decalcified human head specimens, exposing the chorda tympani and the nerve connection between the geniculate and pterygopalatine ganglia. Measurements of nerve lengths, branching distances, and ganglia size were taken. The chorda tympani is a very fine nerve (0.44 mm in diameter within the tympanic cavity) and approximately 54 mm in length. The mean length of the facial nerve from opening of internal acoustic meatus to stylomastoid foramen was 52.5 mm. The mean length of the greater petrosal nerve was 26.1 mm and nerve of the pterygoid canal was 15.1 mm.
Databáze: OpenAIRE