| YFMD | yellow fever membrane disease |
|---|---|
| YNS | yellow nail syndrome |
| YS | yellow spot; yolk sac |
| ys | yellow spot; yolk sac |
| articular surface of tubercle of rib | An oval facet on the inferomedial part of the tubercle of a rib for articulation with a facet on the transverse process of a vertebra. Synonym: facies articularis tuberculi costae. (05 Mar 2000) |
|---|---|
| articular tubercle of temporal bone | Articular eminence of the temporal bone which bounds the mandibular fossa anteriorly; it forms the anterior root of the zygomatic process; it is enclosed by the articular capsule of the temporomandibular joint with the articular fossa; the head of the mandible (and intervening articular disc) move onto the articular tubercle to allow full depression of mandible (opening of mouth). Synonym: tuberculum articulare ossis temporalis, articular eminence of temporal bone, eminentia articularis ossis temporalis, tuber zygomaticum. (05 Mar 2000) |
| ashen tubercle | A longitudinal prominence on the dorsolateral surface of the medulla oblongata along the lateral border of the tuberculum cuneatum; it is the surface profile of the spinal tract of trigeminal nerve, continuous caudally with the dorsolateral fasciculus (Lissauer's tract). Synonym: ashen tubercle, gray tubercle, Rolando's tubercle. (05 Mar 2000) |
| auricular tubercle | A small projection from the upper end of the posterior portion of the incurved free margin of the helix. Synonym: tuberculum auriculae, darwinian tubercle, tuberculum superius. (05 Mar 2000) |
| calcaneal tubercle | The projection, often double, on the inferior aspect of the calcaneus at the anterior end of the area for attachment of the long plantar ligament. Synonym: tuberculum calcanei. (05 Mar 2000) |
| Carabelli tubercle | A small tubercle, resembling a supernumerary cusp, found occasionally on the lingual surface of the mesiolingual cusp of a permanent maxillary first molar. (05 Mar 2000) |
| mamillary tubercle | A small apophysis or tubercle on the dorsal margin of the superior articular process of each of the lumbar vertebrae and usually of the twelfth thoracic vertebra. Synonym: processus mamillaris, mamillary tubercle, metapophysis. (05 Mar 2000) |
| mamillary tubercle of hypothalamus | A small, round, paired cell group that protrudes into the interpeduncular fossa from the inferior aspect of the hypothalamus. It receives hippocampal fibres through the fornix and projects fibres to the anterior thalamic nuclei and into the brainstem tegmentum. Synonym: corpus mamillare, mamillary tubercle of hypothalamus. (05 Mar 2000) |
| genial tubercle | A slight projection, sometimes two, in the middle line of the posterior surface of the body of the mandible, giving attachment to the geniohyoid muscle (below) and the genioglossus (above). Synonym: spina mentalis, genial tubercle. (05 Mar 2000) |
| marginal tubercle | A prominence on the temporal border of the zygomatic bone to which the temporal fascia is attached. Synonym: tuberculum marginale ossis zygomatici, marginal tubercle. (05 Mar 2000) |
| marginal tubercle of zygomatic bone | A prominence on the temporal border of the zygomatic bone to which the temporal fascia is attached. Synonym: tuberculum marginale ossis zygomatici, marginal tubercle. (05 Mar 2000) |
| genital tubercle | The median elevation just cephalic to the urogenital orifice of an embryo; it is the primordium of the penis of the male or the clitoris of the female. Synonym: phallic tubercle. (05 Mar 2000) |
| Gerdy's tubercle | <anatomy> A tubercle on the lateral side of the upper end of the tibia giving attachment to the iliotibial tract and some fibres of the tibialis anterior muscle. (05 Mar 2000) |
| carotid tubercle | The anterior tubercle of the transverse process of the sixth cervical vertebra, against which the carotid artery may be compressed by the finger. Synonym: tuberculum caroticum, Chassaignac's tubercle. (05 Mar 2000) |
| Ghon's tubercle | Calcification seen in pulmonary parenchyma (usually mid-lung area) and hilar nodes resulting from earlier, usually childhood, infection with tuberculosis. Synonym: Ghon's complex, Ghon's focus, Ghon's primary lesion. (05 Mar 2000) |