| VB | vaginal bulb; valence bond; venous blood; ventrobasal; Veronal buffer; vertebrobasilar; viable birth... |
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| WB | waist belt; washable base; washed bladder; water bottle; Wechsler-Bellevue [Scale]; weight-bearing; ... |
| WBGT | wet bulb global temperature |
| WBT | wet bulb temperature |
| olfactory bulb | Ovoid body resting on the cribriform plate of the ethmoid bone where the olfactory nerve terminates. The olfactory bulb contains several types of nerve cells including the mitral cells, on whose dendrites the olfactory nerve synapses, forming the olfactory glomeruli. The accessory olfactory bulb, which receives the projection from the vomeronasal organ via the vomeronasal nerve, is also included here. (12 Dec 1998) |
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| onion bulb neuropathy | Designation for any of several demyelinating polyneuropathies in which the nerves are enlarged, due to onion bulb formation-whorls of overlapping Schwann cell processes encircling bare medullated axons, e.g., progressive hypertrophic polyneuropathy. See: hypertrophic interstitial neuropathy. (05 Mar 2000) |
| taste bulb | One of a number of flask-shaped cell nests located in the epithelium of vallate, fungiform, and foliate papillae of the tongue and also in the soft palate, epiglottis, and posterior wall of the pharynx; it consists of sustentacular, gustatory, and basal cells between which the intragemmal sensory nerve fibres terminate. Synonym: caliculus gustatorius, gustatory bud, Schwalbe's corpuscle, taste bulb, taste corpuscle. (05 Mar 2000) |
| end bulb | One of the oval or rounded bodies in which the sensory nerve fibres terminate in mucous membrane. (05 Mar 2000) |
| jugular bulb | <anatomy, vein> One of two dilated parts of the internal jugular vein: the superior bulb (Heister's diverticulum) is a dilation at the beginning of the internal jugular vein in the jugular fossa of the temporal bone; the inferior bulb is a dilat ed portion of the vein just before it reaches the brachiocephalic vein. Synonym: jugular bulb, bulbus venae jugularis. (05 Mar 2000) |
| arteria bulbi penis | A branch of the internal pudendal artery which supplies the bulb of the penis including the bulbar urethra. Synonym: arteria bulbi penis, arteria bulbi urethrae. (05 Mar 2000) |
| arteria dorsalis penis | The dorsal terminal branch of the internal pudendal artery in the male. Synonym: arteria dorsalis penis. (05 Mar 2000) |
| arteriae helicinae penis | The coiled terminal branches of the deep and dorsal arteries of the penis. Parasympathetic stimulation causes them to uncoil, allowing blood at arterial pressure to fill the cavernous tissue causing erection. Synonym: arteriae helicinae penis. (05 Mar 2000) |
| arteria profunda penis | Origin, terminal branch (with dorsal artery of penis) of the internal pudendal artery; distribution, corpus cavernosum of the penis via capillary beds and via helcine arteries and arteriovenous anastomoses to produce erection. Synonym: arteria profunda penis. (05 Mar 2000) |
| arteries of penis | See: dorsal artery of penis, deep artery of penis. (05 Mar 2000) |
| bifid penis | A rare congenital anomaly in which the penis is partly or completely duplicated; may be symmetrical, or placed one above the other; often there are associated urogenital or other anomalies; occurs when two genital tubercles develop. May also be associated with exstrophy of the urinary bladder. Synonym: bifid penis. Origin: G. Di-, two, + phallos, penis (05 Mar 2000) |
| body of penis | The free pendulous portion of the penis, consisting of shaft and glans penis. Synonym: corpus penis, scapus penis. (05 Mar 2000) |
| bulbus penis | The expanded posterior part of the corpus spongiosum of the penis lying in the interval between the crura of the penis. Synonym: bulbus penis, bulb of corpus spongiosum, bulb of urethra, bulbus urethrae. (05 Mar 2000) |
| buried penis | Normal penis obscured by suprapubic fat. (05 Mar 2000) |
| radix penis | The proximal attached part of the penis, including the two crura and the bulb. Synonym: radix penis. (05 Mar 2000) |