| RN | radionuclide; red nucleus; Registered Nurse; registry number; residual nitrogen; reticular nucleus |
|---|---|
| ROC | receiver operating characteristic; receptor-operated channels; relative operating characteristic; re... |
| RRF | residual renal function |
| RU | radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogra... |
| RUV | residual urine volume |
| transverse fornix | The triangular subcallosal plate of commissural fibres resulting from the converging of the right and left fornix bundles which exchange numerous fibres and which curve back in the contralateral fornix to end in the hippocampus of the opposite side. Synonym: commissura hippocampi, commissure of fornix, delta fornicis, hippocampal commissure, psalterium, transverse fornix. (05 Mar 2000) |
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| transverse fracture | A fracture the line of which forms a right angle with the axis of the bone. (05 Mar 2000) |
| transverse genicular ligament | A transverse band that passes between the lateral and medial menisci in the anterior part of the knee joint. Synonym: ligamentum transversum genus, transverse genicular ligament. (05 Mar 2000) |
| transverse head | Head of origin of a muscle which is transversely situated. Nomina Anatomica lists transverse heads (caput transversum...) of the following: 1) adductor hallucis muscle (... Musculi adductoris hallucis ); 2) adductor pollicis muscle (... Musculi adductoris pollicis ). Synonym: caput transversum. (05 Mar 2000) |
| transverse hermaphroditism | Pseudohermaphroditism in which the external genitalia are characteristic of one sex and the gonads are characteristic of the other sex. (05 Mar 2000) |
| transverse horizontal axis | An imaginary line around which the mandible may rotate through the horizontal plane. Synonym: hinge axis, mandibular axis. (05 Mar 2000) |
| transverse humeral ligament | <anatomy> A fibrous band running more or less obliquely from the greater to the lesser tuberosity of the humerus, bridging over the bicipital groove. Synonym: Brodie's ligament. (05 Mar 2000) |
| transverse lie | That relationship in which the long axis of the foetus is transverse or at right angles to that of the mother. (05 Mar 2000) |
| transverse ligament of acetabulum | Portion of the acetabular labrum that passes across the acetabular notch. Synonym: ligamentum transversum acetabuli. (05 Mar 2000) |
| transverse ligament of elbow | A bundle of fibres running from the olecranon to the coronoid process in association with the ulnar collateral ligament. Synonym: Cooper's ligaments. (05 Mar 2000) |
| transverse ligament of knee | A transverse band that passes between the lateral and medial menisci in the anterior part of the knee joint. Synonym: ligamentum transversum genus, transverse genicular ligament. (05 Mar 2000) |
| transverse ligament of leg | The ligament that binds down the extensor tendons proximal to the ankle joint; it is continuous with (a thickening of) the deep fascia of the leg. Synonym: retinaculum musculorum extensorum superius, ligamentum transversum cruris, superior retinaculum of extensor muscles, transverse crural ligament, transverse ligament of leg. (05 Mar 2000) |
| transverse ligament of pelvis | <anatomy> The thickened anterior border of the urogenital diaphragm, formed by the fusion of its two fascial layers. Synonym: ligamentum transversum perinei, Krause's ligament, ligamentum transversum pelvis, transverse ligament of pelvis, transverse ligament of perineum. (05 Mar 2000) |
| transverse ligament of perineum | <anatomy> The thickened anterior border of the urogenital diaphragm, formed by the fusion of its two fascial layers. Synonym: ligamentum transversum perinei, Krause's ligament, ligamentum transversum pelvis, transverse ligament of pelvis, transverse ligament of perineum. (05 Mar 2000) |
| transverse ligament of the atlas | Thick, strong, centrally flattened band spanning the vertebral foramen of the atlas as it extends from the medial aspect of one lateral mass to the other, passing dorsal to the dens with which it articulates; it forms the dorsal portion of the opening for the dens, tightly embracing its neck. It forms a part of the "cross-bar" of the cruciform ligament of the atlas. See: cruciform ligament of atlas. Synonym: ligamentum transversum atlantis, Lauth's ligament, transverse atlantal ligament. (05 Mar 2000) |