| paralysis, obstetric | Paralysis of an infant resulting from injury received at birth. (12 Dec 1998) |
|---|---|
| obstetric | Pertaining to obstetrics (18 Nov 1997) |
| obstetric conjugate | The diameter that represents the shortest diameter through which the head must pass in descending into the superior strait and measures, by means of X-ray, the distance from the promontory of the sacrum to a point on the inner surface of the symphysis a few millimeters below its upper margin. Synonym: obstetric conjugate diameter. (05 Mar 2000) |
| obstetric conjugate diameter | The diameter that represents the shortest diameter through which the head must pass in descending into the superior strait and measures, by means of X-ray, the distance from the promontory of the sacrum to a point on the inner surface of the symphysis a few millimeters below its upper margin. Synonym: obstetric conjugate diameter. (05 Mar 2000) |
| obstetric conjugate of pelvic outlet | The conjugate of the pelvic outlet lengthened by the posterior displacement of the coccyx. (05 Mar 2000) |
| obstetric position | The position assumed by the parturient woman, either dorsal recumbent or lateral recumbent. (05 Mar 2000) |
| obstetric surgical procedures | Surgery performed on the pregnant woman for conditions associated with pregnancy, labour, or the puerperium. It does not include surgery of the newborn infant. (12 Dec 1998) |
| obstetric ultrasound | Use of diagnostic ultrasound during pregnancy. (05 Mar 2000) |
| abdominal canal | A passage in the lower anterior abdominal wall which in the male allows passage of the spermatic cord and in the female contains the round ligament. Because of the weakness it creates in the abdominal wall, it is the most frequent site for a hernia. (12 Dec 1998) |
| accessory canal | A channel leading from the root pulp laterally through the dentin to the periodontal tissue; may be found anywhere in the tooth root, but is more common in the apical third of the root. Synonym: lateral canal. (05 Mar 2000) |
| adductor canal | The space in middle third of the thigh between the vastus medialis and adductor muscles, converted into a canal by the overlying sartorius muscle. It gives passage to the femoral vessels and saphenous nerve, ending at the adductor hiatus. Synonym: canalis adductorius, Hunter's canal, subsartorial canal. (05 Mar 2000) |
| Alcock's canal | The space within the obturator internis fascia lining the lateral wall of the ischiorectal fossa that transmits the pudendal vessels and nerves. Synonym: canalis pudendalis, Alcock's canal. (05 Mar 2000) |
| alimentary canal | <anatomy> The digestive tract. (27 Sep 1997) |
| anal canal | The terminal portion of the alimentary canal; it extends from the pelvic diaphragm to the anal orifice. Synonym: canalis analis. (05 Mar 2000) |
| anterior condyloid canal of occipital bone | The canal through which the hypoglossal nerve emerges from the skull. Synonym: canalis hypoglossalis, anterior condyloid canal of occipital bone, anterior condyloid foramen. (05 Mar 2000) |