单词 | pylangium |
释义 | pylangiumn. Zoology. In amphibians and some fishes: the first or proximal part of the conus arteriosus which leads out from the ventricle of the heart. Cf. synangium n. 1. ΘΚΠ the world > animals > amphibians > [noun] > member of (amphibian) > parts of tarsus1676 lateral line1740 sideline1769 fat-body1868 pylangium1874 urostyle1875 supracoracoid1897 hedonic gland1901 supracleithrum1903 prepubis1931 1874 T. H. Huxley in Proc. Zool. Soc. 7 Mar. 203 The division of the truncus arteriosus which contains these valves may be termed the ‘pylangium’. 1900 Nature 16 Aug. 365/1 Figures of the frog's heart, which, as regards the detailed structure of the pylangium..are wholly unconventional. 1927 Ann. Assoc. Amer. Geographers 17 123 The sharks, skates, ganoids and lung-fishes have a pylangium with valves disposed as in the amphibians. 1994 Jrnl. Compar. Neurol. 339 354/1 A catheter was inserted into the pylangium of the conus arteriosus. Derivatives pyˈlangial adj. ΚΠ 1889 H. Ayers in Bull. Mus. Compar. Zoöl. Harvard 17 194 The synangium of Chlamydoselachus includes the enlarged end of the ventral aorta lying between the last pair of pylangial valves and the point of origin of the ventral aorta. 1997 W. W. Burggren & R. Fritsche in W. W. Burggren & B. B. Keller Devel. Cardiovascular Syst. xiii. 169 A prominent feature of the amphibian circulation is the intricately structured spiral valve bracketed by pylangial and synangial valves. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1874 |
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