| RSO | radiation safety officer; Resident Surgical Officer; right superior oblique [muscle] |
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| RSR | regular sinus rhythm; relative survival rate; right superior rectus [muscle] |
| RSVC | right superior vena cava |
| SC | conditioned stimulus; sacrococcygeal; Sanitary Corps; scalenus [muscle]; scapula; Schwann cell; scia... |
| SCA | self-care agency; severe congenital anomaly; sickle-cell anemia; single-camera autostereoscopic [ima... |
| medial ligament of knee | <anatomy> The broad fibrous band that passes from the medial epicondyle of the femur to the medial margin and medial surface of the tibia; the medial meniscus is attached to its deep surface; it is continuous with (a thickening of) the fibrous capsule of the knee joint. Synonym: ligamentum collaterale tibiale, medial ligament of knee. (05 Mar 2000) |
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| medial ligament of talocrural joint | <anatomy> Compound ligament consisting of four component ligaments which pass downward from the medial malleolus of the tibia to the tarsal bones: 1) tibionavicular ligament (pars tibionavicularis ), 2) tibiocalcaneal ligament (pars tibiocalcanea ), 3) anterior tibiotalar ligament (pars tibiotalaris anterior ), and 4) posterior tibiotalar ligament (pars tibiotalaris posterior ). Synonym: ligamentum mediale articulationis talocruralis, ligamentum deltoideum, medial ligament of talocrural joint. (05 Mar 2000) |
| medial ligament of wrist | A ligament that passes from the styloid process of the ulna to the pisiform and triquetrum. Synonym: ligamentum collaterale carpi ulnare, internal collateral ligament of the wrist, medial ligament of wrist. (05 Mar 2000) |
| glossoepiglottic ligament | <anatomy> An elastic ligamentous band passing from the base of the tongue to the epiglottis in the middle glossoepiglottic fold. (05 Mar 2000) |
| medial palpebral ligament | <anatomy> The fibrous band that attaches the medial ends of the tarsal plates to the maxilla at the medial orbital margin. Synonym: ligamentum palpebrale mediale, ligamentum tarsale internum, tendo oculi, tendo palpebrarum. (05 Mar 2000) |
| medial puboprostatic ligament | See: puboprostatic ligament. Synonym: medial puboprostatic ligament. (05 Mar 2000) |
| medial talocalcaneal ligament | <anatomy> A ligament extending from the medial tuberosity of the posterior talar process and the sustentaculum tali. Synonym: ligamentum talocalcaneare mediale. (05 Mar 2000) |
| medial umbilical ligament | <anatomy> The obliterated umbilical artery that persists as a fibrous cord passing upward alongside the bladder to the umbilicus. Synonym: ligamentum umbilicale mediale. (05 Mar 2000) |
| median arcuate ligament | <anatomy> A tendinous connection between the crura of the diaphragm that arches over the aorta, forming the anterosuperior margin of the aortic hiatus. Synonym: ligamentum arcuatum medianum. (05 Mar 2000) |
| median thyrohyoid ligament | <anatomy> The central thickened portion of the thyrohyoid membrane. Synonym: ligamentum thyrohyoideum medianum, ligamentum hyothyroideum medium. (05 Mar 2000) |
| median umbilical ligament | <anatomy> The remnant of the urachus, contained in the median umbilical fold; it persists as a midline fibrous cord between the apex of the bladder and the umbilicus. Synonym: ligamentum umbilicale medianum, middle umbilical ligament, urachal ligament. (05 Mar 2000) |
| pectineal ligament | <anatomy> A thick, strong fibrous band that passes laterally from the lacunar ligament along the pectineal line of the pubis. See: aponeurosis of external abdominal oblique muscle. Synonym: ligamentum pectineale, Cooper's ligaments. (05 Mar 2000) |
| vocal ligament | <anatomy> The band that extends on either side from the thyroid cartilage to the vocal process of the arytenoid cartilage; it is the thickened, free upper border of the conus elasticus of the larynx. Synonym: ligamentum vocale. (05 Mar 2000) |
| volar carpal ligament | <anatomy> A strong fibrous band crossing the front of the carpus and binding down the flexor tendons of the digits and the flexor carpi radialis tendon and the median nerve; in so doing it creates the carpal tunnel. Synonym: retinaculum flexorum, deep part of flexor retinaculum, flexor retinaculum, ligamentum carpi transversum, ligamentum carpi volare, volar carpal ligament. (05 Mar 2000) |
| ceratocricoid ligament | One of three ligaments (anterior, posterior, and lateral) reinforcing the capsule of the cricothyroid articulation on either side. Synonym: ceratocricoid ligament. (05 Mar 2000) |