| meninx | Any membrane; specifically, one of the membranous coverings of the brain and spinal cord. See: arachnoidea, dura mater, pia mater. Origin: Mod. L. Fr. G. Meninx, membrane Meninx fibrosa, rarely used term for dura mater. (05 Mar 2000) |
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| meninx primitiva | The embryonic loose mesenchymatous tissue surrounding the brain and spinal cord; from it the three definite meninges (arachnoidea, dura mater, and pia mater) are derived. Synonym: meninx primitiva. Meninx serosa, obsolete term for arachnoidea; the arachnoid is actually not a serous membrane. (05 Mar 2000) |
| meninx tenuis | The two delicate layers of the meninges, the arachnoid mater and pia mater (vs. The tough pachymeninx or dura mater), considered together; by this concept, the arachnoid and pia are two parts of a single layer, much like the parietal and visceral layers of a serous membrane or bursa; although separated by the subarachnoid space they are connected via the arachnoid trabeculae and become continuous where the nerves and filum terminale exit the subarachnoid space (the cerebrospinal fluid-filled space bounded by the leptomeninges). See: arachnoid, pia mater. Synonym: meninx tenuis, pia-arachnoid, piarachnoid. Origin: Lepto-+ G. Meninx, pl. Meninges, membrane (05 Mar 2000) |
| meninx vasculosa | <anatomy> Rarely used term for pia mater. Synonym: meninx vasculosa. (05 Mar 2000) |
| meniscectomy | Excision of a meniscus, usually from the knee joint. Origin: G. Meniskos, crescent (meniscus) + ektome, excision (05 Mar 2000) |
| menisci | Plural of meniscus. (05 Mar 2000) |
| menisci, tibial | Crescent-shaped disks of fibrocartilage attached to the superior articular surface of the tibia. (12 Dec 1998) |
| meniscitis | Inflammation of a fibrocartilaginous meniscus. Origin: G. Meniskos, crescent (meniscus), + -itis, inflammation (05 Mar 2000) |
| meniscocyte | Synonym: sickle cell. Origin: G. Meniskos, a crescent, + kytos, a hollow (cell) (05 Mar 2000) |
| meniscofemoral ligaments | One of two ligaments that extend from the posterior part of the lateral meniscus to the lateral surface of the medial meniscus: anterior meniscofemoral ligament and posterior meniscofemoral ligament. Synonym: ligamenta meniscofemorale. (05 Mar 2000) |
| meniscoid | Concavo-convex, like a meniscus. Origin: Meniscus. Source: Websters Dictionary (01 Mar 1998) |
| meniscopexy | Surgical procedure anchoring the medial meniscus to its former attachment. Synonym: meniscorrhaphy. Origin: menisco-+ G. Pexis, fixation (05 Mar 2000) |
| meniscorrhaphy | Synonym: meniscopexy. Origin: menisco-+ G. Rhaphe, suture (05 Mar 2000) |
| meniscotome | An instrument used in the removal of a meniscus. Origin: G. Meniskos, crescent (meniscus) + tome, incision (05 Mar 2000) |
| meniscus | Origin: NL, from Gr, dim. Of mhnh the moon. 1. A crescent. 2. <optics> A lens convex on one side and concave on the other. 3. <anatomy, ornithology> An interarticular synovial cartilage or membrane; especially, one of the intervertebral synovial disks in some parts of the vertebral column of birds. Converging meniscus, Diverging meniscus. See Lens. Source: Websters Dictionary (01 Mar 1998) |