单词 | heart tube |
释义 | > as lemmasheart tube heart tube n. ΚΠ 1866 R. Owen On Anat. Vertebr. I. xii. 631 The first circulation in an amniotic embryo may be described as passing from the heart-tube by vascular arches to the ‘dorsal artery’, which supplies the parts of the embryo. 1881 Trans. Obstetr. Soc. 22 78 An abnormal amount of tension on the primitive heart-tube. 1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) xiv. 488 The peritoneal linings of the two cavities grow to surround the heart tube. 2004 N.Y. Times (National ed.) 21 Dec. d5/3 The embryo's primitive heart tube folds in the reverse of normal, and the heart's apex is positioned on the right, not the left [in dextrocardia]. < as lemmas |
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