| vertebra | <anatomy> One of 23 bones (excluding the sacrum) in the cervical, thoracic and lumbar regions that comprise the spine. There are 7 cervical vertebrae, 12 thoracic and 5 lumbar vertebrae. The bottom of the spine is fused and forms the sacrum. (27 Sep 1997) |
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| vertebra dentata | <botany> A stem, commonly used for the main stem of a whole plant or of an inflorescence. (09 Oct 1997) |
| vertebra magna | <anatomy> The triangular-shaped bone lying between the 5th lumbar vertebra and the coccyx (tailbone). It consists of 5 vertebrae fused together and it articulates on each side with the bones of the pelvis (ilium), forming the sacroiliac joints. (17 Dec 1997) |
| vertebra plana | <radiology> Calve-Kummel-Verneuil disease, vertebral osteochondrosis, avascular necrosis of vertebral body, age: 2-15 years X-ray: uniform collapse of vertebral body into flat thin disc, increased density of verbra, neural arches not affected, disc spaces are normal with normal intervertebral disc space, intervertebral vacuum cleft sign (pathognomonic), no kyphosis mnemonic: FETISH, fracture, eosinophilic granuloma, tumour, infection, steroids, haemangioma (12 Dec 1998) |
| vertebra prominens | The vertebra in the cervicothoracic region which has the most prominent spinous process (seventh cervical vertebra in 70% of the cases, sixth in 20%, and first thoracic vertebra in 10%). Synonym: nuchal tubercle. (05 Mar 2000) |
| vertebra prominens reflex | Pressure upon the last cervical vertebra of an animal, especially of one whose labyrinths have been destroyed and the vestibular nuclei isolated, causes relaxation or reduced tone of all four limbs. (05 Mar 2000) |
| vertebra vera | Any one of the cervical, thoracic, or lumbar vertebrae. Synonym: vertebra vera. (05 Mar 2000) |
| vertebrae | <anatomy> One of 23 bones (excluding the sacrum) in the cervical, thoracic and lumbar regions that comprise the spine. There are 7 cervical vertebrae, 12 thoracic and 5 lumbar vertebrae. The bottom of the spine is fused and forms the sacrum. (27 Sep 1997) |
| vertebrae cervicales | The seven segments of the vertebral column located in the neck. Synonym: vertebrae cervicales. (05 Mar 2000) |
| vertebrae coccygeae | The four terminal segments of the vertebral column, usually fused to form the coccyx. Synonym: vertebrae coccygeae, tail vertebrae. (05 Mar 2000) |
| vertebrae lumbales | The vertebrae, usually five in number, located in the lumbar region of the back. Synonym: vertebrae lumbales. (05 Mar 2000) |
| vertebrae sacrales | The segments of the vertebral column, usually five in number, that fuse to form the sacrum. Synonym: vertebrae sacrales. (05 Mar 2000) |
| vertebrae spuriae | <anatomy> The fused vertebral segments of the sacrum and coccyx. Synonym: vertebrae spuriae. (05 Mar 2000) |
| vertebrae thoracicae | The segments of the vertebral column, usually twelve, which articulate with ribs to form part of the thoracic cage. Synonym: vertebrae thoracicae. (05 Mar 2000) |
| vertebral | <anatomy> Of or pertaining to a vertebra. Origin: L. Vertebralis (18 Nov 1997) |