| vagal attack | <syndrome> Syndrome consisting of palpitation, chest pain, respiratory difficulties, and disturbances in gastric motility; once attributed to vagal stimulation, now considered psychogenic (anxiety neurosis). Synonym: vagal attack, vasovagal attack. (05 Mar 2000) |
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| vagal bradycardia | Any excessive cardiac slowing due to stimulation of the vagus nerves. (05 Mar 2000) |
| vagal part | <anatomy, nerve> The roots of the accessory nerve which arise from the medulla; the nerve fibres of the cranial root join the intracranial portion of the vagus nerve and are distributed to the pharyngeal plexus, providing the motor innervation of the soft palate (except the tensor veli palati) and the pharynx. Synonym: pars vagalis nervi accessorii, radices craniales, accessory portion of spinal accessory nerve, cranial roots, vagal part of accessory nerve, vagal part. (05 Mar 2000) |
| vagal part of accessory nerve | <anatomy, nerve> The roots of the accessory nerve which arise from the medulla; the nerve fibres of the cranial root join the intracranial portion of the vagus nerve and are distributed to the pharyngeal plexus, providing the motor innervation of the soft palate (except the tensor veli palati) and the pharynx. Synonym: pars vagalis nervi accessorii, radices craniales, accessory portion of spinal accessory nerve, cranial roots, vagal part of accessory nerve, vagal part. (05 Mar 2000) |
| vagal trigone | A prominence in the floor of the inferior fovea of the fourth ventricle that overlies the dorsal motor nucleus of the vagus. Synonym: trigonum nervi vagi, ala cinerea, ashen wing, gray wing, trigone of vagus nerve, va'gi eminentia. (05 Mar 2000) |
| vagal trunk | One of the two nerve bundles, anterior and posterior, into which the oesophageal plexus continues as it passes through the diaphragm. Synonym: truncus vagalis. (05 Mar 2000) |
| vagantes | <zoology> A tribe of spiders, comprising some of those which take their prey in a web, but which also frequently run with agility, and chase and seize their prey. Origin: NL, fr. L. Vagans, p. Pr. Of vagari to stroll or wander. Source: Websters Dictionary (01 Mar 1998) |
| vagectomy | Surgical removal of a segment of a vagus nerve. (05 Mar 2000) |
| vagi | Plural of vagus. (05 Mar 2000) |
| vagile | Showing an ability or tendency to change or adapt to new situations, in ecological terms, this refersto an organism that changes its locationor distribution over time. (09 Oct 1997) |
| vagin- | See: vagino-. (05 Mar 2000) |
| vagina | The female organ of sexual intercourse, the birth canal. (09 Oct 1997) |
| vagina bulbi | A condensation of connective tissue on the outer aspect of the sclera from which it is separated by a narrow cleftlike episcleral space; the sheath is attached to the sclera near the sclerocorneal junction and blends with the fascia of the extraocular muscles. Synonym: vagina bulbi, capsula bulbi, eye capsule, fascia bulbi, sheath of eyeball, Tenon's capsule, vagina oculi. (05 Mar 2000) |
| vagina carotica | The dense fibrous investment of the carotid artery, internal jugular vein, and vagus nerve on each side of the neck, deep to the sternocleidomastoid muscle; the layers of cervical fascia blend with it. Synonym: vagina carotica. (05 Mar 2000) |
| vagina cellulosa | The connective tissue sheath of a nerve or muscle (perineurium or perimysium, respectively). (05 Mar 2000) |