| ODT | oculodynamic tract; right occipitotransverse [fetal position] [Lat. occipito-dextra transversa] |
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| OLT | left occipitotransverse [fetal position] [Lat. occipito-laeva transversa]; orthotopic liver transpla... |
| SDT | sensory detection theory; right sacrotransverse [fetal position] [Lat. sacrodextra transversa]; sign... |
| SLT | left sacrotransverse [fetal position] [Lat. sacrolaeva transversa]; single lung transplantation; smo... |
| FO | Fossa(Foramen) Ovale |
| fissura transversa cerebelli | The cleft caused by the protrusion of the anterior lobe of the cerebellum over the superior and middle cerebellar peduncles. Synonym: fissura transversa cerebelli. (05 Mar 2000) |
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| fissura transversa cerebri | The triangular space between the corpus callosum and fornix above and the dorsal surface of the thalamus below, which is bounded laterally by the choroid fissure of the lateral ventricle, lined by pia mater, and opens caudally into the cistern of the great cerebral vein of the subarachnoid space. Synonym: fissura transversa cerebri. (05 Mar 2000) |
| ligamenta capitulorum transversa | See: deep transverse metacarpal ligament, deep transverse metatarsal ligament. (05 Mar 2000) |
| lineae transversa ossi sacri | One of four ridges that cross the pelvic surface of the sacrum; these mark the positions of the intervertebral disks between the bodies of the five sacral vertebrae in the immature bone. Synonym: lineae transversa ossi sacri. (05 Mar 2000) |
| anterior condyloid foramen | 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) |
| anterior palatine foramen | An opening in the posterolateral corner of the hard palate opposite the last molar tooth, marking the lower end of the pterygopalatine canal. Synonym: foramen palatinum majus, anterior palatine foramen. (05 Mar 2000) |
| aortic foramen | The opening in the diaphragm bounded by the two crura, the vertebral column, and the median arcuate ligament, through which pass the aorta and thoracic duct. Synonym: hiatus aorticus, aortic foramen, aortic opening. (05 Mar 2000) |
| apical dental foramen | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| apical foramen of tooth | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| arachnoid foramen | The large midline opening in the posterior inferior part of the roof of the fourth ventricle, connecting the ventricle with the cerebellomedullary cistern. Synonym: apertura mediana ventriculi quarti, arachnoid foramen, Magendie's foramen, median aperture of the fourth ventricle. (05 Mar 2000) |
| Bichat's foramen | <anatomy, vein> An expansion of the subarachnoid space extending forward between the corpus callosum and the thalamus; it encloses the internal cerebral veins which caudally join to form the vena magna cerebri (Galen's vein). Synonym: ambient cistern, Bichat's canal, Bichat's foramen, cistern of great vein of cerebrum, cisterna ambiens, cisterna superioris, cisterna venae magnae cerebri, superior cistern. (05 Mar 2000) |
| blind foramen of frontal bone | <anatomy> Blind or caecal foramen of the frontal bone; the blind foramen formed immediately anterior to the crista galli by a notch at the lower end of the frontal crest and its articulation with the ethmoid bone. It is insignificant postnatally, but gives passage to vessels during development. Synonym: foramen caecum ossis frontalis, blind foramen of frontal bone, caecal foramen of frontal bone. (05 Mar 2000) |
| blind foramen of the tongue | <anatomy> A median pit on the dorsum of the posterior part of the tongue, from which the limbs of a V-shaped furrow run forward and outward; it is the site of origin of the thyroid gland and subsequent thyroglossal duct in the embryo. Synonym: foramen caecum linguae, blind foramen of the tongue, caecal foramen of the tongue, Morgagni's foramen, pleuroperitoneal foramen. (05 Mar 2000) |
| Bochdalek's foramen | An opening through the diaphragm, connecting pleural and peritoneal cavities, usually the result of defective development of the pleuroperitoneal membrane in the embryo; if the defect is extensive there may be herniation of digestive organs into the pleural cavity. See: diaphragmatic hernia. Synonym: Bochdalek's foramen. (05 Mar 2000) |
| Botallo's foramen | The orifice of communication between the two atria of the foetal heart. See: foramen ovale. (05 Mar 2000) |