| OP | occipitoparietal; occipitoposterior; occiput posterior; octapeptide; olfactory peduncle; opening pre... |
|---|---|
| opg | opening |
| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |
| PAo | airway opening pressure; ascending aortic pressure; pulmonary artery occlusion pressure |
| Po | opening pressure |
| platypellic pelvis | Flat oval pelvis, in which the transverse diameter is more than 3 cm longer than the anteroposterior diameter. (05 Mar 2000) |
|---|---|
| platypelloid pelvis | Simple flat pelvis. (05 Mar 2000) |
| contracted pelvis | A pelvis with less than normal measurements in any diameter. (05 Mar 2000) |
| cordate pelvis | Cordiform pelvis, a pelvis with sacrum projecting forward between the ilia, giving to the brim a heart shape. Synonym: heart-shaped pelvis. (05 Mar 2000) |
| crossed reflex of pelvis | Contraction of the contralateral adductors of the thigh upon tapping the anterior superior iliac spine. Synonym: crossed spino-adductor reflex. (05 Mar 2000) |
| Prague pelvis | A pelvis whose brim is more or less occluded by a forward dislocation of the body of the lower lumbar vertebra. Synonym: Prague pelvis, Rokitansky's pelvis. (05 Mar 2000) |
| hardened pelvis | A condition in which the true pelvis is indurated throughout, especially by carcinoma. Synonym: hardened pelvis. (05 Mar 2000) |
| heart-shaped pelvis | Cordiform pelvis, a pelvis with sacrum projecting forward between the ilia, giving to the brim a heart shape. Synonym: heart-shaped pelvis. (05 Mar 2000) |
| scoliotic pelvis | A deformed pelvis associated with lateral curvature of the spine. (05 Mar 2000) |
| pseudo-osteomalacic pelvis | An extreme degree of rachitic pelvis, resembling the puerperal osteomalacic pelvis, in which the pelvic canal is obstructed by a forward projection of the sacrum, and an approximation of the acetabula. (05 Mar 2000) |
| small pelvis | The cavity of the pelvis below the brim or superior aperture. Synonym: pelvis minor, pelvis vera, small pelvis, true pelvis. (05 Mar 2000) |
| spider pelvis | Narrow calices of renal pelvis. (05 Mar 2000) |
| split pelvis | A pelvis in which the symphysis pubis is absent, the pelvic bones being separated by quite an interval; usually associated with exstrophy of the bladder. (05 Mar 2000) |
| spondylolisthetic pelvis | A pelvis whose brim is more or less occluded by a forward dislocation of the body of the lower lumbar vertebra. Synonym: Prague pelvis, Rokitansky's pelvis. (05 Mar 2000) |
| Nagele's pelvis | An obliquely contracted or unilateral synostotic pelvis, marked by arrest of development of one lateral half of the sacrum, usually ankylosis of the sacroiliac joint on that side, rotation of the sacrum toward the same side, and deviation of the symphysis pubis to the opposite side. (05 Mar 2000) |