| RAD | radial artery catheter; radiation absorbed dose; radical; radiography or radiographic; reactive airw... |
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| SAD | Scale of Anxiety and Depression; seasonal affective disorder; Self-Assessment Depression [scale]; se... |
| SAX | short axis; surface antigen, X-linked |
| SAx | short axis |
| SAX-APEX | short-axis plane, apical |
| 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) |
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| assimilation pelvis | A deformity in which the transverse processes of the last lumbar vertebra are fused with the sacrum, or the last sacral with the first coccygeal body. (05 Mar 2000) |
| beaked pelvis | A pelvic deformity in osteomalacia; the pressure of the trunk on the sacrum and lateral pressure of the femoral heads produce a pelvic aperture that is three-cornered or has the shape of a heart or cloverleaf, while the pubic bone becomes beak-shaped. Synonym: beaked pelvis, rostrate pelvis. (05 Mar 2000) |
| brachypellic pelvis | A pelvis in which the transverse diameter is more than 1 cm longer but less than 3 cm longer than the anteroposterior diameter. Synonym: transverse oval pelvis. (05 Mar 2000) |
| caoutchouc pelvis | In osteomalacia, a pelvis in which the bones are still soft. Synonym: rubber pelvis. (05 Mar 2000) |
| rachitic pelvis | A contracted and deformed pelvis, most commonly a flat pelvis, occurring from rachitic softening of the bones in early life. (05 Mar 2000) |
| masculine pelvis | A pelvis justo minor in which the bones are large and heavy, a slight degree of funnel-shaped pelvis in the woman, in which the shape approximates that of the male pelvis. (05 Mar 2000) |
| cavitas pelvis | The space bounded at the sides by the bones of the pelvis, above by the superior aperture of the pelvis, and below by the pelvic diaphragm; it contains the pelvic viscera. Synonym: cavitas pelvis, cavum pelvis. (05 Mar 2000) |
| cavum pelvis | The space bounded at the sides by the bones of the pelvis, above by the superior aperture of the pelvis, and below by the pelvic diaphragm; it contains the pelvic viscera. Synonym: cavitas pelvis, cavum pelvis. (05 Mar 2000) |
| renal pelvis | <anatomy> The area at the centre of the kidney. Urine collects here and is funneled into the ureter. (12 Dec 1998) |
| reniform pelvis | A modified cordate pelvis, with a long transverse diameter, giving the brim a kidney shape. (05 Mar 2000) |
| pelvis | The pelvis is a basin shaped cavity bordered by the pelvic girdle and sacrum, containing and protecting the bladder, rectum and reproductive organs. Pelvic, as pertains to the pelvis. (27 Sep 1997) |
| pelvis justo major | A symmetrical pelvis with greater than normal measurements in all diameters. (05 Mar 2000) |
| pelvis justo minor | A pelvis of the female type, but with all its diameters smaller than normal. (05 Mar 2000) |
| pelvis major | The expanded portion of the pelvis above the brim. Synonym: pelvis major, false pelvis, large pelvis, pelvis spuria. (05 Mar 2000) |