| transverse crest of internal acoustic meatus | A horizontal ridge that divides the fundus of the internal acoustic meatus into a superior and an inferior area. In the former are the introitus of the facial canal and openings for the branches of the vestibular nerve to the utricle and to the ampullae of the anterior and lateral saemicircular canals. In the latter are openings for the cochlear nerve, and for branches of the vestibular nerve to the saccule and to the ampulla of the posterior saemicircular canal. Synonym: crista transversa, falciform crest, transverse crest. (05 Mar 2000) |
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| transverse crural ligament | 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) |
| transverse diameter | The transverse diameter of the pelvic inlet, measured between the terminal lines. Synonym: diameter transversa. (05 Mar 2000) |
| transverse disk | One of the dark transverse bands seen on examining a striated muscular fibre under the microscope. (05 Mar 2000) |
| transverse ductules of epoophoron | A series of 10 to 15 short tubules that open into the longitudinal duct of the epoophoron and represent vestiges of the mesonephric duct. Synonym: ductuli transversi epoophori, tubuli epoophori. (05 Mar 2000) |
| transverse facial artery | <anatomy, artery> Origin, superficial temporal; distribution, parotid gland, parotid duct, masseter muscle, and overlying skin; anastomoses, infraorbital and buccal branches of maxillary, and buccal and masseteric branches of facial. Synonym: arteria transversa faciei. (05 Mar 2000) |
| transverse facial fracture | A complex fracture in which the facial bones are separated from the cranial bones. Synonym: Le Fort III craniofacial dysjunction, Le Fort III fracture, transverse facial fracture. (05 Mar 2000) |
| transverse facial vein | <anatomy, vein> A tributary of the superficial temporal or retromandibular veins, anastomosing with the facial vein. Synonym: vena transversa faciei, transverse vein of face. (05 Mar 2000) |
| transverse fasciculi | The transversely directed fibres in the distal portions of the palmar and plantar aponeuroses. Synonym: transverse fasciculi. (05 Mar 2000) |
| transverse foramen | Foramen processus transversus. Synonym: foramen processus transversi, foramen transversarium, foramen vertebroarterialis, foramen of transverse process, vertebroarterial foramen. (05 Mar 2000) |
| transverse fornix | The triangular subcallosal plate of commissural fibres resulting from the converging of the right and left fornix bundles which exchange numerous fibres and which curve back in the contralateral fornix to end in the hippocampus of the opposite side. Synonym: commissura hippocampi, commissure of fornix, delta fornicis, hippocampal commissure, psalterium, transverse fornix. (05 Mar 2000) |
| transverse fracture | A fracture the line of which forms a right angle with the axis of the bone. (05 Mar 2000) |
| transverse genicular ligament | A transverse band that passes between the lateral and medial menisci in the anterior part of the knee joint. Synonym: ligamentum transversum genus, transverse genicular ligament. (05 Mar 2000) |
| transverse head | Head of origin of a muscle which is transversely situated. Nomina Anatomica lists transverse heads (caput transversum...) of the following: 1) adductor hallucis muscle (... Musculi adductoris hallucis ); 2) adductor pollicis muscle (... Musculi adductoris pollicis ). Synonym: caput transversum. (05 Mar 2000) |
| transverse hermaphroditism | Pseudohermaphroditism in which the external genitalia are characteristic of one sex and the gonads are characteristic of the other sex. (05 Mar 2000) |