| superior fascia of pelvic diaphragm | The fascia on the superior aspect of the levator ani and coccygeus muscles. Synonym: fascia diaphragmatis pelvis superior. (05 Mar 2000) |
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| superior fascia of urogenital diaphragm | A layer of fascia that has been described on the superior surface of the sphincter urethrae and the deep transverse perineal muscles. Its presence is doubted by some anatomists. Synonym: fascia diaphragmatis urogenitalis superior. (05 Mar 2000) |
| superior flexure of duodenum | The flexure at the junction of the superior and descending parts of the duodenum. Synonym: flexura duodeni superior. (05 Mar 2000) |
| superior fovea | A slight depression in the limiting sulcus on either side of the rhomboidal fossa, above the medullary striae and lateral to the facial colliculus. Synonym: fovea superior, anterior fovea, fovea anterior. (05 Mar 2000) |
| superior frontal convolution | A broad convolution running in an anteroposterior direction on the medial edge of the convex surface and of each frontal lobe. Synonym: gyrus frontalis superior, marginal gyrus, superior frontal convolution. (05 Mar 2000) |
| superior frontal gyrus | A broad convolution running in an anteroposterior direction on the medial edge of the convex surface and of each frontal lobe. Synonym: gyrus frontalis superior, marginal gyrus, superior frontal convolution. (05 Mar 2000) |
| superior frontal sulcus | A sagittal fissure on the superior surface of each frontal lobe of the cerebrum starting from the precentral sulcus; it forms the lateral boundary of the superior frontal convolution. Synonym: sulcus frontalis superior. (05 Mar 2000) |
| superior ganglion of glossopharyngeal nerve | <anatomy, nerve> The upper and smaller of two ganglia on the glossopharyngeal nerve as it traverses the jugular foramen. Synonym: ganglion superius nervi glossopharyngei, Ehrenritter's ganglion, intracranial ganglion, jugular ganglion. (05 Mar 2000) |
| superior ganglion of vagus nerve | <anatomy, nerve> A small sensory ganglion on the vagus as it traverses the jugular foramen. Synonym: ganglion superius nervi vagi, jugular ganglion. (05 Mar 2000) |
| superior gastric lymph nodes | Nodes located along the left gastric artery and its branches; they are divided into paracardial, upper and lower groups. Synonym: nodi lymphatici gastrici sinistri, superior gastric lymph nodes. (05 Mar 2000) |
| superior gemellus | <anatomy, muscle> Origin, ischial spine and margin of lesser sciatic notch; insertion, tendon of musculus obturator internus; action, rotates thigh laterally; nerve supply, sacral plexus. Synonym: musculus gemellus superior, gemellus. (05 Mar 2000) |
| superior gluteal nerve | <anatomy, nerve> Arises from the fourth and fifth lumbar and first sacral nerves, and supplies the gluteus medius and minimus and tensor fasciae latae muscles (abductors and medial rotators of the hip joint). A lesion of this nerve causes the pelvis to drop on the unsupported side when the foot is lifted off the ground (Trendelenburg sign). Synonym: nervus gluteus superior. (05 Mar 2000) |
| superior gluteal veins | The veins that accompany the superior gluteal artery, entering the pelvis as two veins which unite into one and empty into the internal iliac vein. Synonym: venae gluteae superiores. (05 Mar 2000) |
| superior haemorrhagic polioencephalitis | <syndrome> A condition frequently encountered in chronic alcoholics, largely due to thiamin deficiency and characterised by disturbances in ocular motility, pupillary alterations, nystagmus, and ataxia with tremors; an organic-toxic psychosis is often an associated finding, and Korsakoff's syndrome often coexists; characteristic cellular pathology found in several areas of the brain. Synonym: superior haemorrhagic polioencephalitis, Wernicke's disease, Wernicke's encephalopathy. (05 Mar 2000) |
| superior haemorrhoidal plexus | The autonomic plexus derived as a continuation of the inferior mesenteric plexus that accompanies the superior rectal artery. Synonym: plexus rectalis superior, superior haemorrhoidal plexus. (05 Mar 2000) |