Saturday, September 11, 2021

TEMPORAL AND INFRATEMPORAL FOSSAE

 The entire area consists of 2 fossae divided by the zygomatic arch.

TEMPORAL FOSSA 

  • Related to the temple of the head.
  • Communicates with the infratemporal fossa beneath the zygomatic arch.

INFRATEMPORAL FOSSA

  • An irregularly shaped fossa inferior and medial to the zygomatic arch.
  • Communicates with the pterygopalatine fossa at the pterygomaxillary fissure.

MUSCLES

  • Temporalis
  • Lateral pterygoid 
  • Medial pterygoid
ARTERIES

  • Maxillary and its branches
VEINS

  • Pterygoid plexus of veins and tributaries
NERVES

  • Mandibular division of the trigeminal n. and branches
  • Posterior superior alveolar (branch of maxillary division of trigeminal)
  • Chorda tympani (branch of the facial n.)
  • Otic ganglion 
  • Lesser petrosal

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