nerve-fi'bril

One of a number of fine threads forming a net-work in the body of a ganglion nerve-cell and extending into the dendrites; they 66s re believed to form the conducting part of the erve-fibeis. re-gan'gUon. Ganglion (i). re-graft'ing. The insertion of nerve substance •cm a rabbit or other animal to fill a gap beifeen the divided ends of a nerve the grafted; i ue acts as a bridge and does not form part ner'vousne . the new ti ue. f re-hill'ock. i. Doyfere's eminence or hillock, ner'vus, ae slight prominence where a nerve-fiber enters muscle. 2. Neuromast. lie ve-nucleus (nurv-nu'kle-us). An oval body, ne to each internode, lying beneath the leurilemma in a depre ion in the medtillary ubstance of a nerve-fiber. ve-pain. Neuralgia. re-papill'a. One of the papillae in the skin con lining a tactile corpuscle or other form of endrgan. re-root. One of the two bundles of nerve-fibers, merging from (or entering) the spinal cord on ither side, which join to form a spinal nerve the; nterior or ventral roots contain the motor fibers nd emerge from the cord on either side of the nteromedian fi ure in the anterior root-zone; he posterior or dorsal roots contain the sensory ibers and enter the cord in the posterolateral ulcus; each dorsal root is provided with a ganglion. ve-stretch'ing. The operation of forcibly extendQg or stretching a nerve-trunk, resorted to in the reatment of obstinate neuralgia; neurectasia, leurectasis, neurectasy, neurotension, ueurotony. ve-Bu'ture. Neurorrhaphy. Te-tire. Neurasthenia. A ve-tract. bundle or group of white nerveibers in the brain or spinal cord, A ve-trunk. collection of ftuiiculi or bundles of lerve-fibers enclosed in a connective-ti ue iheath, the epineurium •ve-tu'mor. Neuroma. 'vi. Plural of nervus, nerve, n. nervo'rum L. nerves of lierves], nerves distributed to the heaths of nerve-trunks. vimotil'ity. Capability of movement in response;o a nervous stimulus. + vimo'tion [L. nervus, nerve, motus, motion.] Movement in response to a nervous stimulus. vimo'tor. Relating to a motor nerve. + vim us'cular [L. nervus, nerve, musculus, nuscle.] Relating to both nerves and muscles; •elating to the nerve-supply of a muscle. Tine (nur'ven). Acting therapeutically, i.. specially as a sedative, upon the nerves or nerve lenters. 2. An agent which increases nerve-force md le ens irritability, male n., cypripedium. + Tocidine (nur-vos'i-den) [L. nervus, nerve, A adere, to kill.] local anesthetic, the hydrojhloride of an alkaloid from an East Indian plant, 'flsuhasu. r'vosine. Trade name of a mixture of valerian md iron, recommended in hysteria in doses of rr. 3-s (0.2-0.3). Tosism (nxir'vo-sizm). i. Nervousne ; nervous irethism. 2. The theory which regards varia;ions in nerve force as the basis of all pathoogical change. Tos'ity. Nervosism (1). r'vous. 1. Relating to a nerve or the nerves. 2. Easily excited or agitated; suffering from instaiility or weakne of nerve action, n. exhaus'- ion, n. prostra'tion, neurasthenia, n. system,;he entire nerve apparatus of the body, including:he brain, spinal cord, nerves, and ganglia; the NERVUS brain and spinal cord with the nerves arising from them constitute the cerebrospinal n, system; the sympathetic n. system, is composed of the extra spinal ganglia with their nerves, n. ti ue, the differentiated ti ue composing the n. system see ti ue. A condition of unrest and of irritability of the nerve-centers. gen. and pi. ner'vi [L.] Nerve. n. abdu'cens [BNA], abducent nerve, 6th cranial nerve, a small motor nerve supplying the external rectus muscle of the eye; its origin is in the dorsal part of the tegmentum of the pons just below the surface of the rhomboidal fo a, and it emerges from the brain in the fi ure between the posterior border of the pons and the anterior end of the pyramid of the pons; it pa es along the cavernous sinus and enters the orbit through the sphenoidal fi ure. n. acce o'rius [BNA], acce ory nerve, spinal acce ory nerve, nth cranial nerve, arises frona the medulla and from the spinal cord as far down as the level of the fifth cervical nerve, and emerges from the side of the medulla and the cord in two parts, acce ory and spinal; the former joins the vagus in the jugular foramen supplying the cardio-inhibitory and the visceromotor fibers of that nerve; the spinal portion pa es down the neck and supplies the stemomastoid and trapezius muscles. n. acus'tic us [BNA], acoustic nerve, auditory nerve, portio moll is, 8th cranial nerve, the nerve of hearing; it has two roots, vestibular and cochlear, the former terminates in a ganglion close to the restiform body, the latter in three nuclei, but chiefly in the nucleus of Deiters in the lateral wall of the fourth ventricle; the radix vestibular is emerges from the brain between the olive and the restiform body, the radix cochlear is winds round the outer side of the restiform body; the two roots unite arid pa through the internal acoustic meatus when the roots again separate to form the n. vestibuli and n. cochlea. n. alveola'ris infe'rior [BNA], inferior alveolar nerve, inferior dental nerve, one of the terminal branches of the mandibular, pa ing down to enter the inferior dental canal, then distributing branches to the teeth. n. alveola'ris supe'rior [BNA], superior alveolar nerve, posterior dental nerve, a branch (sometimes two branches) of the maxillary in the pterygopalatine canal, pa ing through the pterygomaxillary fi ure and supplying gums and molar teeth. n. ampulla'ris [BNA], ampullar nerve, one of three branches of the acoustic nerve; two from the vestibular trunk going to the arapullEe of the superior and lateral semicircular canals, the third from the cochlear trunk going to the ampulla of the inferior semicircular canal. ner'vi anococcyge'i [BNA], a no coccygeal nerves, several small nerves arising from the lower portion of the pudendal plexus (coccygeal plexus), supplying the posterior portion of the levator ani muscle and the skin over the coccyx. n. audi to'rius, auditory nerve, n. acusticus [BNA]. n. auricula'ris magnus [BNA], great auricular nerve, arises from the 2d and 3d cervical, supplies the skin of part of the ear, adjacent portion of the scalp, and cheek and angle of the jaw. n. auricula'rls poste'rior [BNA], posterior auricular nerve, a branch of the n. facial is, supplying the posterior surface of the auricle. n. auric"ulotempora'lis [BNA], auriculotemporal nerve, a branch of the mandibular, usually by two roots embracing the middle meningeal artery; it pa es backward beneath the external pterygoid muscle, between the external lateral ligament and the neck of the mandible, and through the parotid gland, terminating in the skin of the temple and scalp. n. azilla'ris [BNA], axillary nerve, circumflex nerve, arises from the posterior cord of the brachial plexus in the axilla, pa es downward and outward with the posterior circumflex artery, and winds round the surgical neck of the humerus supplying the deltoid and teres minor muscles. n. bucca'lis, buccal nerve, n. buccinator i us [BNA]. n. buccina to'riuB [BNA], buccinator nerve, buccal nerve, a sensory branch of the masticator nerve.