• nasal
  • The most common congenital or acquired defect in the skull base bones (anterior cranial fossa) at the spontaneous nasal liquorrhea localized in following formation: sphenoid sinus (43%) ethmoid bone (29%) cribriform plate (29%) traumatic head injury meningitis cerebrospinal fluid Beta-2 transferrin Kerr, Julie T. (wikipedia.org)
  • from Greek ethmos, "sieve") is an unpaired bone in the skull that separates the nasal cavity from the brain. (wikipedia.org)