Retropharyngeal space extends from the base of the skull to
Retropharyngeal space: It lies behind the pharynx between the buccopharyngeal fascia covering pharyngeal constrictor muscles and the preveebral fascia.It extends from the base of the skull to the bifurcation of the trachea.Space is divided into two lateral compaments (spaces of Gillette) by a fibrous raphe.Each lateral space contains retropharyngeal nodes which usually disappear at3-4 years of age.Parapharyngeal space communicates with the retropharyngeal space.Infection of retropharyngeal space can pass down behind the esophagus into the mediastinum.
Hyoid bone
Bifurcation of trachea
Angle of mandible
Cricoid cailage
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