Facial recess or the posterior sinus is bounded by:
Facial recess or Posterior sinus - It is a depression in the posterior wall of the middle ear. It is bounded by: Medially - Veical pa of VIII nerve Laterally - Chorda tympani Above - Fossa incudis
Medially by the veical pa of VII nerve
Laterally by the chorda tympani
Above by the fossa includis
All of the above