| RLR | right lateral rectus [muscle] |
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| RMR | relative maximum respone; resting metabolic rate; right medial rectus [muscle] |
| RMS | rectal morphine sulfate [suppository]; red man syndrome; repetitive motion syndrome; respiratory mus... |
| RSO | radiation safety officer; Resident Surgical Officer; right superior oblique [muscle] |
| RSR | regular sinus rhythm; relative survival rate; right superior rectus [muscle] |
| Santorini's muscle | <anatomy, muscle> Origin, from platysma and fascia of masseter; insertion, orbicularis oris and skin at corner of mouth; action, draws angle of mouth laterally, lenghthening rima oris; nerve supply, facial. Synonym: musculus risorius, Albinus' muscle, Santorini's muscle. Origin: L. Risor, a laughter, fr. Rideo, pp. Risus, to laugh (05 Mar 2000) |
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| progressive muscle relaxation | A cognitive-behavioural strategy in which muscles are alternately tensed and then relaxed in a systematic fashion. (16 Dec 1997) |
| satellite cell of skeletal muscle | <anatomy> An elongated spindle-shaped cell occupying depressions in the sarcolemma and between it and the basal lamina; believed to play a role in muscle repair and regeneration by fusing with adjacent myofibre. Synonym: sarcoplast. (05 Mar 2000) |
| scalenus minimus muscle | <anatomy> An occasional independent muscular fasciculus between the scalenus anterior and medius, and having the same action and innervation. Synonym: musculus scalenus minimus, Albinus' muscle, Sibson's muscle, smallest scalene muscle. (05 Mar 2000) |
| scalp muscle | <anatomy> Composed of the epicranial aponeurosis and the muscles inserting into it, i.e., the occipitofrontalis musculus and temporoparietalis musculus. Synonym: musculus epicranius, epicranial muscle, scalp muscle. (05 Mar 2000) |
| psoas minor muscle | <anatomy> An inconstant muscle, absent in about 40%; origin, bodies of twelfth thoracic and first lumbar vertebrae and disk between them; insertion, iliopubic eminence via iliopectineal arch (iliac fascia); action, assists in flexion of lumbar spine; nerve supply, lumbar plexus. Synonym: musculus psoas minor, smaller psoas muscle. (05 Mar 2000) |
| Sebileau's muscle | <anatomy> Deep fibres of the dartos tunic which pass into the scrotal septum. (05 Mar 2000) |
| pterygopharyngeal part of superior constrictor muscle of pharynx | pterygopharyngeal part of superior constrictor muscle of pharynx |
| second tibial muscle | An inconstant muscle, of small size, arising from the back of the tibia and inserted into the articular capsule of the ankle joint. Synonym: second tibial muscle. (05 Mar 2000) |
| pubococcygeal muscle | <anatomy> Fibres of the levator ani, arising from the pelvic surface of the body of the pubis and adjacent tendinous arch of obturator fascia, attaching to the coccyx. Synonym: musculus pubococcygeus, pubococcygeal muscle. (05 Mar 2000) |
| pubococcygeus muscle | <anatomy> Fibres of the levator ani, arising from the pelvic surface of the body of the pubis and adjacent tendinous arch of obturator fascia, attaching to the coccyx. Synonym: musculus pubococcygeus, pubococcygeal muscle. (05 Mar 2000) |
| puboprostatic muscle | <anatomy> Smooth muscle fibres within the puboprostatic ligament. Synonym: musculus puboprostaticus. (05 Mar 2000) |
| puborectalis muscle | <anatomy> The medial part of the musculus levator ani (pubococcygeus muscle) that passes from the body of the pubis around the anus to form a muscular sling at the level of the anorectal junction; it contracts to increase the perineal flexure during a peristalsis to maintain faecal continence and relaxes to allow defecation. Synonym: musculus puborectalis, Braune's muscle, puborectal muscle. (05 Mar 2000) |
| puborectal muscle | <anatomy> The medial part of the musculus levator ani (pubococcygeus muscle) that passes from the body of the pubis around the anus to form a muscular sling at the level of the anorectal junction; it contracts to increase the perineal flexure during a peristalsis to maintain faecal continence and relaxes to allow defecation. Synonym: musculus puborectalis, Braune's muscle, puborectal muscle. (05 Mar 2000) |
| pubovaginalis muscle | <anatomy> In the female, the most medial fibres of the levator ani (pubococcygeus) muscle that extend from the pubis into the lateral walls of the vagina. Synonym: musculus pubovaginalis, pubovaginal muscle. (05 Mar 2000) |