| PFO | Patent Foramen Ovale |
|---|---|
| CF | calcaneal fibular [ligament]; calcium leucovorin; calf blood flow; calibration factor; cancer-free; ... |
| FM | face mask; facilities management; family medicine; feedback mechanism; fetal movement; fibromuscular... |
| FO | fiberoptic; fish oil; foot arthrosis; foramen ovale; forced oscillation; fronto-occipital |
| For | foramen; forensic |
| ethmoidal cells | The numerous small air-filled cells of the ethmoidal labyrinth. See: anterior ethmoidal air cells, middle ethmoidal air cells, posterior ethmoidal air cells. Synonym: cellulae ethmoidales, sinus ethmoidales, ethmoidal cells. (05 Mar 2000) |
|---|---|
| ethmoidal crest | Bony ridge which articulates with, or provides attachment for, any part of the ethmoid bone, especially the middle nasal concha. See: ethmoidal crest of maxilla, ethmoidal crest of palatine bone. Synonym: crista ethmoidalis. (05 Mar 2000) |
| ethmoidal crest of maxilla | A ridge on the upper part of the nasal surface of the frontal process of the maxilla that gives attachment to the anterior portion of the middle nasal concha. Synonym: crista ethmoidalis maxillae. (05 Mar 2000) |
| ethmoidal crest of palatine bone | A ridge on the medial surface of the perpendicular part of the palatine bone to which the middle nasal concha attaches posteriorly. Synonym: crista ethmoidalis ossis palatini. (05 Mar 2000) |
| ethmoidal groove | A groove on the inner surface of each nasal bone, lodging the external nasal branch of the anterior ethmoid nerve. Synonym: sulcus ethmoidalis. (05 Mar 2000) |
| ethmoidal infundibulum | A passage from the middle meatus of the nose communicating with the anterior ethmoidal cells and frontal sinus. Synonym: infundibulum ethmoidale, ethmoid infundibulum. (05 Mar 2000) |
| ethmoidal labyrinth | A mass of air cells with thin bony walls forming part of the lateral wall of the nasal cavity; the cells are arranged in three groups, anterior, middle, and posterior, and are closed laterally by the orbital plate which forms part of the wall of the orbit. Synonym: labyrinthus ethmoidalis, ectethmoid, ectoethmoid, lateral mass of ethmoid bone. (05 Mar 2000) |
| ethmoidal-lacrimal fistula | A fistulous communication between the lacrimal sac and the ethmoidal sinus. Synonym: internal lacrimal fistula. (05 Mar 2000) |
| ethmoidal notch | An oblong gap between the orbital parts of the frontal bone in which the ethmoid bone is lodged. Synonym: incisura ethmoidalis. (05 Mar 2000) |
| ethmoidal process | A projection of the inferior concha, situated behind the lacrimal process and articulating with the uncinate process of the ethmoid. Synonym: processus ethmoidalis. (05 Mar 2000) |
| ethmoidal veins | Veins that accompany the anterior and posterior ethmoidal arteries and pass into the superior ophthalmic vein; they drain the ethmoidal sinuses. Synonym: venae ethmoidales. (05 Mar 2000) |
| anterior part of anterior commissure of brain | The anterior part of the anterior or rostral commissure of the brain. Synonym: pars anterior commissurae rostralis, pars anterior commissurae anterioris cerebri. (05 Mar 2000) |
| aortic foramen | The opening in the diaphragm bounded by the two crura, the vertebral column, and the median arcuate ligament, through which pass the aorta and thoracic duct. Synonym: hiatus aorticus, aortic foramen, aortic opening. (05 Mar 2000) |
| apical dental foramen | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| apical foramen of tooth | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |