| PIV | parainfluenza virus; polydactyly-imperforate anus-vertebral anomalies [syndrome]; projective image v... |
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| RVA | re-entrant ventricular arrhythmia; right ventricle activation; right vertebral artery |
| RVD | relative vertebral density; right ventricular dysplasia |
| VA | vacuum aspiration; valproic acid; vasodilator agent; ventricular aneurysm; ventricular arrhythmia; v... |
| VACTERL | vertebral abnormalities, anal atresia, cardiac abnormalities, tracheoesophageal fistula and/or esoph... |
| vertebral nerve | <anatomy, nerve> A branch from the stellate ganglion that ascends along the vertebral artery to the level of the axis or atlas, giving branches to the cervical nerves and meninges. Synonym: nervus vertebralis. (05 Mar 2000) |
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| vertebral notch | One of the two concavities above (superior) and below (inferior) the pedicle of a vertebra; the notches of two adjacent vertebrae (plus the intervertebral disc) form an intervertebral foramen. Synonym: incisura vertebralis, intervertebral notch. (05 Mar 2000) |
| vertebral part of diaphragm | The portion of the diaphragm that arises from the upper lumbar vertebrae and from the medial and lateral arcuate ligaments. See: right crus of diaphragm, left crus of diaphragm, lateral arcuate ligament, medial arcuate ligament. Synonym: pars lumbalis diaphragmatis, vertebral part of diaphragm. (05 Mar 2000) |
| vertebral part of the costal surface of the lungs | The part of the medial surface of the lung in contact with the vertebral bodies. Synonym: pars vertebralis faciei costalis pulmonis. (05 Mar 2000) |
| vertebral plexus | <anatomy, artery> A plexus of autonomic nerves on the vertebral artery derives from the subclavian plexus. Synonym: plexus vertebralis, vertebral plexus. (05 Mar 2000) |
| vertebral polyarthritis | Inflammation of a number of the intervertebral disks without involvement of the vertebral bodies. (05 Mar 2000) |
| vertebral pulp | The soft fibrocartilage central portion of the intervertebral disk; regarded as a derivative of the notochord. Synonym: gelatinous nucleus, nucleus gelatinosus, vertebral pulp. (05 Mar 2000) |
| vertebral region | The central region of the back, corresponding to the underlying vertebral column. Synonym: regio vertebralis. (05 Mar 2000) |
| vertebral ribs | The two lower ribs on either side that are not attached anteriorly. Synonym: costae fluitantes, costae fluctuantes, vertebral ribs. (05 Mar 2000) |
| vertebral vein | <anatomy, vein> A vein derived from tributaries (venae comitantes) which run through the foramina in the transverse processes of the first six cervical vertebrae and form a plexus around the vertebral artery; it empties as a single trunk into the brachiocephalic veins. Synonym: vena vertebralis. (05 Mar 2000) |
| vertebral venography | Radiographic demonstration of the epidural venous plexus by injection of contrast medium into the spinous process. (05 Mar 2000) |
| vertebral venous plexus | Any of four interconnected venous networks surrounding the vertebral column; anterior external vertebral venous plexus, the small system around the vertebral bodies; posterior external vertebral venous plexus, the extensive system around the vertebral processes; anterior internal vertebral venous plexus, the system running the length of the vertebral canal anterior to the dura; posterior internal vertebral venous plexus, the system running the length of the vertebral canal posterior to the dura; the latter two constitute the epidural venous plexus. Synonym: plexus venosus vertebralis, Batson's plexus, vertebral venous plexus. (05 Mar 2000) |
| vertebral venous system | Any of four interconnected venous networks surrounding the vertebral column; anterior external vertebral venous plexus, the small system around the vertebral bodies; posterior external vertebral venous plexus, the extensive system around the vertebral processes; anterior internal vertebral venous plexus, the system running the length of the vertebral canal anterior to the dura; posterior internal vertebral venous plexus, the system running the length of the vertebral canal posterior to the dura; the latter two constitute the epidural venous plexus. Synonym: plexus venosus vertebralis, Batson's plexus, vertebral venous plexus. (05 Mar 2000) |
| carotid-vertebral artery anastomoses | <radiology> Trigeminal a. (most common variant: 0.1-0.2%), otic a., hypoglossal a., proatlantal intersegmental a., ** posterior communicating a. (PCA), -- normal anastomosis of carotid to BASILAR artery) (12 Dec 1998) |
| periarterial plexus of vertebral artery | <anatomy, artery> A plexus of autonomic nerves on the vertebral artery derives from the subclavian plexus. Synonym: plexus vertebralis, vertebral plexus. (05 Mar 2000) |