| MSO | management service organization; medial superior olive; medical staff organization |
|---|---|
| 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] |
| arcus tarseus | See: arterial arch of lower eyelid, arterial arch of upper eyelid. (05 Mar 2000) |
|---|---|
| arcus tendineus | A white, fibrous band attached to bone and/or muscle, arching over and thus protecting neurovascular elements passing beneath it from injurious compression, a linear thickening of the deep fascia of a muscle which provides attachment for ligaments and/or muscle fibres. Synonym: arcus tendineus. (05 Mar 2000) |
| arcus tendineus fasciae pelvis | A linear thickening of the superior fascia of the pelvic diaphragm extending posteriorly from the body of the pubis alongside the bladder (and vagina in the female) and giving attachment to the supporting ligaments of the pelvic viscera. Synonym: arcus tendineus fasciae pelvis. (05 Mar 2000) |
| arcus tendineus musculi levatoris ani | <anatomy> A thickened portion of the obturator fascia that extends in an arching line from the pubis posteriorly to the ischial spine and gives origin to part of the levator ani muscle. Synonym: arcus tendineus musculi levatoris ani, arcus tendineus of obturator fascia. (05 Mar 2000) |
| arcus tendineus musculi solei | <anatomy> A tendinous arch stretching over the popliteal vessels between the tibia and fibula, that gives origin to the central portion of the soleus muscle. Synonym: arcus tendineus musculi solei. (05 Mar 2000) |
| arcus tendineus of obturator fascia | <anatomy> A thickened portion of the obturator fascia that extends in an arching line from the pubis posteriorly to the ischial spine and gives origin to part of the levator ani muscle. Synonym: arcus tendineus musculi levatoris ani, arcus tendineus of obturator fascia. (05 Mar 2000) |
| arcus unguium | Origin: L, prop, a little moon. See Lunule. <anatomy> Same as Lunule. Source: Websters Dictionary (01 Mar 1998) |
| arcus venosus dorsalis pedis | The arch in the subcutaneous tissue of the dorsum of the foot formed by the dorsal and digital veins; it unites medially with the dorsal vein of the great toe to form the great saphenous vein, and laterally with the dorsal vein of the little toe to form the small saphenous. Synonym: arcus venosus dorsalis pedis. (05 Mar 2000) |
| arcus venosus juguli | A connecting vein between the two anterior jugular veins in the suprasternal space. Synonym: arcus venosus juguli. (05 Mar 2000) |
| arcus venosus palmaris profundus | The venous arch that accompanies the deep palmar arterial arch it usually consists of paired venae comitantes. Synonym: arcus venosus palmaris profundus. (05 Mar 2000) |
| arcus venosus palmaris superficialis | The venous arch accompanying the superficial palmar arterial arch it consists usually of paired venae comitantes and is drained by the superficial ulnar and radial veins. Synonym: arcus venosus palmaris superficialis. (05 Mar 2000) |
| arcus venosus plantaris | The arch formed by the plantar digital veins from the toes which accompanies the plantar arterial arch. Synonym: arcus venosus plantaris. (05 Mar 2000) |
| arcus vertebrae | The posterior projection from the body of a vertebra that encloses the vertebral foramen; it consists of paired pedicles and laminae; the spinous, transverse, and articular processes arise from the arch. In aggregate, the venous arches-and the ligamenta flava that unite them-form the posterior wall of the vertebral (spinal) canal. Synonym: arcus vertebrae, neural arch. (05 Mar 2000) |
| arcus volaris profundus | deep palmar (arterial) arch |
| arcus volaris superficialis | superficial palmar (arterial) arch |