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Medial pterygoid

Contents

Anatomy pictures

Medial pterygoid internal
Medial pterygoid external
Medial pterygoid lateral

Referred pain pattern

Medial pterygoid - pain pattern

Symptoms

  • Problems chewing (painful), clenching teeth, difficulties opening mouth
  • Sore throat
  • Painful swallowing
  • Restricted range of motion in opening of mouth

Videos

Short version

Detailed version

Anatomy

Position

  • Deep

Origin

  • Medial surface of lateral pterygoid plate
  • Processus pyramidalis os palatinum
  • Tuberositas maxillae

Insertion

  • Inferior and posterior part of ramus
  • Angle of foramen mandibula

Main function

  • TM joint
    • Elevation

Secondary function

  • TM joint
    • Protraction
    • Contralateral deviation

Nerve innervation

  • Trigeminal nerve / CN V, mandibular division

Arterial supply

  • Maxillary artery