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  • ophthalmic
  • The facial nerve leaves the skull via the foramen lacerum by hitching a ride with the greater petrosal nerve, eventually reaching the eye by merging with the lacrimal and zygomatic divisions of the ophthalmic division of the trigeminal nerve. (kenhub.com)
  • fibrous
  • A tube of fibrous membrane, continuous with the lachrymal sac, adheres to the parietes of this canal, and is lined by mucous membrane, which, at the opening into the nose, is often arranged 'so as to form an imperfect valve. (imedecin.com)
  • upper
  • The lachrymal sac (fig. 398, 2), the slightly dilated upper portion of the passage, is situated at the side of the nose, near the inner canthus of the eye, and lies embedded in a deep groove in the ungual and upper maxillary bones. (imedecin.com)