释义 |
‖ zona|ˈzəʊnə| The Lat. form of the Gr. word repr. by zone. a. Archæol. A girdle: = zone n. 3. b. Used in Anatomy with various qualifying adjs. to denote certain structures or parts of structures (see quots., and cf. zone n. 6); also zona fasciculata, glomerulosa, reticularis [mod.L. (see fasciculate a., etc.), coined in Ger. by J. Arnold 1866, in Arch. f. path. Anat. & Physiol. XXXV. 66], the middle, outer, and inner layers respectively of the cortex of the adrenal gland; zona ignea [L., = fiery girdle] Path., also simply zona, the disease herpes zoster or shingles. zona pellucida, the transparent membrane forming the cell-wall of the ovum in Mammalia. zona radiata, a radially striated form of the zona pellucida surrounding the ova of certain vertebrates as seen in the light microscope.
1706Phillips (ed. Kersey), Zona{ddd}a kind of Herpes, or Shingles call'd Holy Fire. 1800J. Dallaway Anecd. Arts Eng. 249 Both the tænia and zona are concealed by drapery falling over them. 1818–20Thompson tr. Cullen's Nosol. (ed. 3) 331 Herpes Zoster, Zona; or Zona ignea: the shingles. 1841M. Barry in Phil. Trans. CXXXII. 116 We saw the incipient chorion, when rising from the ‘zona pellucida’ in the mammiferous ovum, to leave a stratum of unappropriated cells behind it on the ‘zona’. 1848Dunglison Med. Lex. s.v., Zona Tendinosa, the whitish circle around the auriculo-ventricular orifice of the right side of the heart. 1874R. J. Dunglison Dict. Med. Sci. (new ed.) 1130/1 Zona reticularis... Zona glomerulosa... Zona fasciculata. 1881F. M. Balfour Treat. Compar. Embryol. II. iv. 55 The ovum [of Teleosei] when laid is usually invested in the zona radiata only. 1883Klein Elem. Histol. 341 The inner zona, or zona reticularis, composed of smaller or larger groups of polyhedral cells. Ibid. 341 Next follows the middle zone, or zona fasciculata. Ibid., Next follows the inner zone, or zona reticularis. 1899Allbutt's Syst. Med. VIII. 616 Yet there has never been any confusion with regard to H[erpes] Zoster, or Zona, since the disease was first described. 1925E. B. Wilson Cell (ed. 3) iv. 272 The zona radiata of the vertebrate ovum, conspicuously shown in the fishes, is a thick and often double membrane traversed by fine radial canals. 1964Parker & Haswell Text-bk. Zool. (ed. 7) II. 319 The ovum [of Salmo trutta, the brown trout] is covered by a thick membrane, the zona radiata. 1965Lee & Knowles Animal Hormones iv. 70 The cells in the innermost layer are in the form of a reticulum—the zona reticularis. Ibid., The zona glomerulosa secretes mineralocorticoid. Ibid. 71 Hypophysectomy results in shrinkage mainly of the zona fasciculata and reticularis, and the blood glucose falls. |