The Oropharynx

  • The oropharynx:
    • Extends from:
      • The level of the hard palate superiorly to
      • The level of the hyoid bone inferiorly
  • Its anterior limit is:
    • The anterior faucal / tonsillar pillar:
      • But this is contiguous with:
        • The retromolar trigone
  • The oropharynx is divided into the following components:
    • The anterior wall:
      • Which is made up of:
        • The base of the tongue:
          • Posterior to the foramen caecum
        • The vallecula and
        • The lingual surface of the epiglottis:
          • It is bounded by the:
            • Pharyngoepiglottic folds
    • The lateral wall:
      • Which is made up of:
        • The anterior pillar:
          • Palatoglossus muscle
        • The posterior pillar:
          • Palatopharyngeus muscle and
        • The pharyngeal palatine tonsil
    • The roof:
      • Which is formed by the soft palate containing the:
        • Two heads of palatopharyngeus
        • The levator palati
        • The tensor palati and
        • The palatoglossus
      • The oral surface of the soft palate:
        • Is in the oropharynx
      • The nasopharyngeal surface:
        • Is part of the nasopharynx
    • The posterior wall:
      • Which extends from:
        • The level of the hard palate to the level of the hyoid bone and:
          • Is anterior to the second and third cervical vertebrae:
            • This consists of the:
              • Superior pharyngeal constrictor
              • Middle pharyngeal constrictor
              • Buccopharyngeal fascia:
                • Which separates it from the prevertebral fascia
  • The tongue base, or posterior tongue:
    • This is made up of:
      • The genioglossus muscle:
        • Which is attached to the hyoid
  • The base of the tongue:
    • Is contiguous with the vallecula:
      • Which is the roof of the pre-epiglottic space

#Arrangoiz #HeadandNeckSurgeon #CancerSurgeon #SurgicalOncologist #Teacher

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s