| segmentum internodale | The portion of a myelinated nerve fibre between two successive nodes. Synonym: interannular segment, internode, Ranvier's segment, segmentum internodale. (05 Mar 2000) |
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| segmentum laterale | A delimited part or section of an organ or other structure which lies farthest to the left or right side of the other similar parts or sections. 1) segmentum laterale (hepar); the lateral segment of the left lobe of the liver. 2) segmentum laterale (pulmo dexter); [S 4]; the lateral segment of the middle lobe of the right lung. Synonym: segmentum laterale. (05 Mar 2000) |
| segmentum mediale | A delimited part or section of an organ or other structure which lies closer or closest to the midline than the other similar parts or sections. 1) segmentum mediale (hepar); the medial segment of the left lobe of the liver. 2) segmentum mediale (pulmo dexter); [S 5]; the medial segment of the middle lobe of the right lung. Synonym: segmentum mediale. (05 Mar 2000) |
| segmentum posterius | A delimited part or section of an organ or other structure which lies in back of or dorsal to the other similar parts or sections; 1) segmentum posterius (hepar); the posterior segment of the right lobe of the liver; 2) segmentum posterius (pulmo dexter); [S 2]; the posterior segment of the superior lobe of the right lung; 3) segmentum posterius (ren); the posterior segment of the kidney; 4) camera vitrea bulbi; vitreous camera; vitreous chamber of eye; the posterior intraocular segment of the eyeball occupied by the vitreous which lies behind the aqueous-filled anterior segment and is separated from it by the lens and zonule. Synonym: segmentum posterius. (05 Mar 2000) |
| segmentum subapicale | An inconstant segment of the inferior lobe of the right and left lungs. Synonym: segmentum subapicale, segmentum subsuperius, subsuperior segment. (05 Mar 2000) |
| segmentum subsuperius | An inconstant segment of the inferior lobe of the right and left lungs. Synonym: segmentum subapicale, segmentum subsuperius, subsuperior segment. (05 Mar 2000) |
| brachium quadrigeminum superius | A band of fibres of the optic tract bypassing the lateral geniculate body to terminate in the superior colliculus and pretectal region. Synonym: brachium colliculi superioris, brachium quadrigeminum superius, superior quadrigeminal brachium. (05 Mar 2000) |
| ganglion cervicale superius | The largest and uppermost of the paravertebral sympathetic ganglia. (12 Dec 1998) |
| ganglion mesentericum superius | A paired sympathetic ganglion located at the origin of the superior mesenteric artery from the aorta. Synonym: ganglion mesentericum superius. (05 Mar 2000) |
| ganglion superius nervi glossopharyngei | <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) |
| ganglion superius nervi vagi | <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) |
| velum medullare superius | The thin layer of white matter stretching between the two superior cerebellar peduncles, forming the roof of the superior recess of the fourth ventricle. Synonym: velum medullare superius, anterior medullary velum, Vieussens' valve. (05 Mar 2000) |
| mediastinum superius | That part lying above, i.e., above the pericardium; it contains the arch of the aorta and the vessels arising from it, the brachiocephalic veins, and upper portion of the superior vena cava, the trachea, the oesophagus, the thoracic duct, the thymus, and the phrenic, vagus, cardiac, and left recurrent laryngeal nerves. Synonym: mediastinum superius. (05 Mar 2000) |
| retinaculum musculorum extensorum superius | The ligament that binds down the extensor tendons proximal to the ankle joint; it is continuous with (a thickening of) the deep fascia of the leg. Synonym: retinaculum musculorum extensorum superius, ligamentum transversum cruris, superior retinaculum of extensor muscles, transverse crural ligament, transverse ligament of leg. (05 Mar 2000) |
| membrum superius | The shoulder, arm, forearm, wrist, and hand. Synonym: membrum superius, superior limb, thoracic limb, upper extremity. (05 Mar 2000) |