| OAISO | overaction of the ipsilateral superior oblique |
|---|---|
| PASVR | pulmonary anomalous superior venous return |
| RNSC | radionuclide superior cavography |
| RSO | radiation safety officer; Resident Surgical Officer; right superior oblique [muscle] |
| RSR | regular sinus rhythm; relative survival rate; right superior rectus [muscle] |
| regio lumbalis | The region of the back lateral to the vertebral region and between the rib cage and the pelvis. Synonym: regio lumbalis. (05 Mar 2000) |
|---|---|
| regio mammaria | The region of the breast. Synonym: regio mammaria. (05 Mar 2000) |
| regio mentalis | The region of the chin. Synonym: regio mentalis. (05 Mar 2000) |
| regio nasalis | The region of the nose. Synonym: regio nasalis. (05 Mar 2000) |
| regio nuchalis | An alternate term for posterior region of neck. (05 Mar 2000) |
| regio occipitalis capitis | The surface region of the head corresponding to the outlines of the occipital bone. Synonym: regio occipitalis capitis. (05 Mar 2000) |
| regio olfactoria tunicae mucosae nasi | The specialised olfactory receptive area that includes the upper one-third of the nasal septum and the lateral wall above the superior concha; it is lined with olfactory mucosa. Synonym: regio olfactoria tunicae mucosae nasi, olfactory region of tunica mucosa of nose, Schultze's membrane. (05 Mar 2000) |
| regio oralis | The region of the face including the lips and mouth. Synonym: regio oralis. (05 Mar 2000) |
| regio orbitalis | The region about the orbit. Synonym: regio orbitalis. (05 Mar 2000) |
| regio parietalis capitis | The surface region of the head corresponding to the outlines of the underlying parietal bone. Synonym: regio parietalis capitis. (05 Mar 2000) |
| regio pectoralis | The region of the chest demarcated by the outline of the pectoralis major muscle. See: pectoral region, regions of chest. Synonym: regio pectoralis. (05 Mar 2000) |
| regio perinealis | The regio at the lower end of the trunk, anterior to the sacral region and posterior to the pubic region between the thighs; it is divided into the anal triangle posteriorly and the urogenital triangle anteriorly. Synonym: regio perinealis. (05 Mar 2000) |
| regio plantaris | An alternate term for sole of foot. (05 Mar 2000) |
| regio presternalis | The part of the chest over the sternum. Synonym: regio presternalis. (05 Mar 2000) |
| regio pubica | The lower central region of the abdomen below the umbilical region. Synonym: hypogastrium, regio pubica. (05 Mar 2000) |