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单词 heart tube
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> as lemmas

heart 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].
extracted from heartn.int.adv.
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