| prevertebral ganglia | The sympathetic ganglia (coeliac, aorticorenal, superior and inferior mesenteric) lying in front of the vertebral column, as distinguished from the ganglia of the sympathetic trunk (paravertebral ganglia); these ganglia occur mostly around the origin of the major branches of the abdominal aorta; all are in the abdomino-pelvic cavity, concerned with innervation of abdomino-pelvic viscera. (05 Mar 2000) |
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| sacral ganglia | Three or four ganglia on either side constituting, with the ganglion impar and the interganglionic rami, the pelvic portion of the sympathetic trunk. Synonym: ganglia sacralia. (05 Mar 2000) |
| hypogastric ganglia | The parasympathetic ganglia scattered through the pelvic plexus on either side. Synonym: ganglia pelvina, hypogastric ganglia. (05 Mar 2000) |
| solar ganglia | The largest and highest group of prevertebral sympathetic ganglia, located on the superior part of the abdominal aorta, on either side of the origin of the coeliac artery; contains sympathetic neurons whose unmyelinated postganglionic axons innervate the stomach, liver, gallbladder, spleen, kidney, small intestine, and ascending and transverse colon. H Synonym: ganglia coeliaca, semilunar ganglion, solar ganglia, Vieussens' ganglia, Willis' centrum nervosum. (05 Mar 2000) |
| sympathetic ganglia | Those ganglia of the autonomic nervous system that receive efferent fibres originating from preganglionic visceral motor neurons in the intermediolateral cell column of thoracic and upper lumbar spinal segments (T1-L2). On the basis of their location, the sympathetic ganglia can be classified as paravertebral ganglia (ganglia trunci sympathici) and prevertebral ganglia (ganglia coeliaca). See: autonomic nervous system. (05 Mar 2000) |
| intermediate ganglia | Small sympathetic ganglia most commonly found on the communicating branches in the cervical and lumbar region. Synonym: ganglia intermedia. (05 Mar 2000) |
| thoracic ganglia | Ganglia, 11 or 12 on either side, at the level of the head of each rib, constituting with the interganglionic rami the thoracic portion of the sympathetic trunk. Synonym: ganglia thoracica. (05 Mar 2000) |
| extracranial ganglia | <anatomy, nerve> The lower of two sensory ganglion's on the glossopharyngeal nerve as it traverses the jugular foramen. Synonym: ganglion inferius nervi glossopharyngei, Andersch's ganglion, extracranial ganglia, ganglion extracraniale, petrosal ganglion, petrous ganglion. (05 Mar 2000) |
| lumbar ganglia | Four or more ganglia on the medial border of the psoas major muscle on either side; they form, with the sacral and coccygeal ganglia and their interganglionic rami, the abdominopelvic sympathetic trunk. Synonym: ganglia lumbalia. (05 Mar 2000) |
| anterior pelvic exenteration | Removal of the urinary bladder, lower parts of the ureter, vagina, uterus, adnexa, and adjacent lymph nodes; a urinary diversion is necessary. (05 Mar 2000) |
| anteroposterior diameter of the pelvic inlet | Distance from the promontory of the sacrum to the upper posterior edge of the pubic symphysis. Synonym: anteroposterior diameter of the pelvic inlet, conjugata vera, conjugate axis, conjugate diameter of pelvic inlet, diameter mediana, internal conjugate, true conjugate. (05 Mar 2000) |
| parietal pelvic fascia | Including the obturator fascia, covers the muscles that pass from the interior of the pelvis to the thigh. Synonym: fascia pelvis parietalis. (05 Mar 2000) |
| visceral pelvic fascia | Covers the pelvic organs and surrounds vessels and nerves in the subperitoneal space. Synonym: endopelvic fascia, fascia pelvis visceralis. (05 Mar 2000) |
| pelvic | <anatomy> Pertaining to the pelvis. (18 Nov 1997) |
| pelvic abscess | An abscess in the pelvic peritoneal cavity, developing as a complication of diffuse peritonitis or of localised peritonitis associated with abdominal or pelvic inflammatory disease, such as salpingitis; the pus frequently collects in the rectovesical or rectouterine pouch. (05 Mar 2000) |