| osseous labyrinth | A series of cavities (cochlea, vestibule, and saemicircular canals) contained within the otic capsule of the petrous portion of the temporal bone; the bony labyrinth is filled with perilymph, in which the delicate, endolymph-filled membranous labyrinth is suspended. Synonym: labyrinthus osseus, osseous labyrinth. (05 Mar 2000) |
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| osseous lacuna | A cavity in bony tissue occupied by an osteocyte. (05 Mar 2000) |
| osseous part of skeletal system | The part of the skeleton composed of bone. Synonym: pars ossea systematis skeletalis. (05 Mar 2000) |
| osseous polyp | A polyp consisting in part of bony tissue. (05 Mar 2000) |
| osseous tissue | A connective tissue, the matrix of which consists of collagen fibres and ground substance and in which are deposited calcium salts (phosphate, carbonate, and some fluoride) in the form of an apatite. Synonym: bone tissue. (05 Mar 2000) |
| endo-osseous implant | An implant into alveolar bone inserted through the prepared root canal of a tooth in order to increase effective root length. (05 Mar 2000) |
| florid osseous dysplasia | Benign fibro-osseous jaw lesions of unknown aetiology, occurring predominantly in middle-aged black females, which present as large painless radiopaque masses usually involving several quadrants of the jaw. Synonym: florid osseous dysplasia, cemental dysplasia. (05 Mar 2000) |
| Vieussens' limbus | A muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart. Synonym: annulus ovalis, margin of fossa ovalis, Vieussens' annulus, Vieussens' isthmus, Vieussens' limbus, Vieussens' ring. (05 Mar 2000) |
| limbus | 1. An extramundane region where certain classes of souls were supposed to await the judgment. "As far from help as Limbo is from bliss." (Shak) "A Limbo large and broad, since called The Paradise of fools." (Milton) The limbus patrum was considered as a place for the souls of good men who lived before the coming of our Savior. The limbus infantium was said to be a similar place for the souls of unbaptized infants. To these was added, in the popular belief, the limbus fatuorum, or fool's paradise, regarded as a receptacle of all vanity and nonsense. 2. Hence: Any real or imaginary place of restraint or confinement; a prison; as, to put a man in limbo. 3. <anatomy> A border or margin; as, the limbus of the cornea. 4. A West Indian dance contest, in which participants must dance under a pole which is lowered successively until only one participant can successfully pass under, without falling. [MW10 Jamaican E limba to bend, fr. E. Limber (1950)] Often performed at celebrations, such as weddings. (1950-1996) Origin: L. Limbus border, edge in limbo on the border. Cf. Limb border. Source: Websters Dictionary (01 Mar 1998) |
| limbus acetabuli | The rim of bone around the acetabulum to which is attached the labrum acetabulare. Synonym: limbus acetabuli, margo acetabularis. (05 Mar 2000) |
| limbus alveolaris | The free margin of the alveolar process of the mandible. Synonym: arcus alveolaris mandibulae, limbus alveolaris. (05 Mar 2000) |
| limbus corneae | An annular transitional zone, approximately 1 mm wide, between the cornea and the bulbar conjunctiva and sclera. It is highly vascular and is involved in the metabolism of the cornea. It is ophthalmologically significant in that it appears on the outer surface of the eyeball as a slight furrow, marking the line between the clear cornea and the sclera. (12 Dec 1998) |
| limbus fossae ovalis | A muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart. Synonym: annulus ovalis, margin of fossa ovalis, Vieussens' annulus, Vieussens' isthmus, Vieussens' limbus, Vieussens' ring. (05 Mar 2000) |
| limbus laminae spiralis osseae | The border of the spiral lamina; the thickened periosteum covering the upper plate of the bony spiral lamina of the cochlea. Synonym: limbus laminae spiralis osseae. (05 Mar 2000) |
| limbus membranae tympani | Margin of the tympanic membrane attaching to the tympanic sulcus. Synonym: limbus membranae tympani. (05 Mar 2000) |