What is ENT - Explain the parapharyngeal space and list what each compartment contains.
The larger cornu of the hyoid bone serves as the apex of the inverted pyramid-shaped parapharyngeal region, which has its base at the base of the skull. Boundaries of the Parapharyngeal Space • Anterior: Pterygomandibular raphe and pterygoid muscles • Posterior: Vertebral fascia • Superior: Skull base • Inferior: Hyoid bone • Lateral: Mandible, deep parotid gland • Medial: Pharynx (superior constrictor muscle, buccopharyngeal fascia) Compartments and their contents • Pre-styloid compartment: Internal maxillary artery, pterygoid venous plexus, minor salivary gland tissue, and fat • Post-styloid compartment: Neurovascular bundle including carotid artery, internal jugular vein, sympathetic chain, and cranial nerves IX, X, XI.
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