| 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) |
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| 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) |
| limbus of bony spiral lamina | 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 of cornea | The margin of the cornea overlapped by the sclera. Synonym: limbus corneae, corneal margin, sclerocorneal junction. (05 Mar 2000) |
| limbus of tympanic membrane | Margin of the tympanic membrane attaching to the tympanic sulcus. Synonym: limbus membranae tympani. (05 Mar 2000) |
| limbus palpebrales anteriores | The anterior edge of the free margin of each eyelid, along close to which the eyelashes are embedded. Synonym: limbus palpebrales anteriores. (05 Mar 2000) |
| limbus penicillatus | <pathology> The densely packed microvilli on the apical surface of, for example: intestinal epithelial cells. (18 Nov 1997) |
| limbus striatus | Obsolete term for the apical surface of an epithelium with microvilli. (18 Nov 1997) |