| 释义 |
neurogenic, a.|njʊərəˈdʒɛnɪk|
[f. neuro- + -genic.]
1. a. Of a theory: implying or assuming control (esp. of the heart-beat) by the nervous system.
1901Buck's Handbk. Med. Sci. (ed. 2) III. 111/1 The neurogenic theory is based on the following considerations: Muscular tissue.. depends upon its motor-nerve impulses to set it into action. 1922C. P. Howard in L. F. Barker Endocrinol. & Metabolism I. 313 Biedl has come to the conclusion that the neurogenic theory was based upon inconclusive experiments.
b. Caused or controlled by (a disorder of) the nervous system.
1904[see myogenic adj. s.v. myo-]. 1949Koestler Insight & Outlook v. 69 They [sc. digestive disorders] could be called neurogenic rather than psychogenic. 1961Lancet 19 Aug. 409/1 The book..ends with a detailed account of the surgical treatment of neurogenic disorders of the entire urogenital tract. 1974Nature 8 Mar. 106/3 In the singing katydids..relatively high rates of sound pulses..are controlled by synchronous, or neurogenic, muscles in which each contraction is initiated by a nerve impulse.
c. neurogenic bladder, abnormal functioning of the bladder owing to disturbances of nervous control.
1930Urologic & Cutaneous Rev. XXXIV 541/2 (heading) Treatment of the neurogenic bladder with the slow sinusoidal current. 1952P. A. Herbut Urological Path. I. iii. 323 In neurogenic bladder the sphincteric mechanism ceases to exist as an efficient functioning structure and the detrusor mechanism dictates the behavior of the bladder. 1966Wright & Symmers Systemic Path. I. xxv. 782/1 The neurogenic bladder is in effect a functional obstruction of the urinary tract.
2. Of or pertaining to neurogenesis; giving rise to nervous tissue.
1915J. A. Nelson Embryol. of Honey Bee viii. 127 The neurogenic area..comprises two longitudinal thickenings, the primitive swellings..which are separated by a median furrow. 1928R. M. May tr. Ramón y Cajal's Degeneration & Regeneration Nervous Syst. I. xvi. 381 Some of the neurogenic factors mentioned by Harrison seem to us highly doubtful. 1941Johannsen & Butt Embryol. of Insects & Myriapods xv. 242 A thin layer of elongated cells, the neurilemma, probably arising from the outlying ganglion cells, covers the neurogenic tissue dorsally.
Hence neuroˈgenically adv., by the nervous system or by nerves.
1960Arch. Neurol. III. 229/1 The result is a sterile inflammatory reaction, neurogenically induced. 1967Jrnl. Pharmacol. & Exper. Therap. CLV. 37/2 Phentolamine blocked with equal facility..the norepinephrine- and neurogenically evoked constriction. 1971Nature 28 May 264/2 Increased sensitivity at the receptor level could play a role in enhancement of neurogenically mediated responses. |