| 单词 | yolk duct |
| 释义 | > as lemmasyolk duct yolk duct n. = yolk stalk n. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > yolk > yolk duct yolk duct1827 yolk stalk1884 1827 R. T. Gore in tr. C. G. Carus Introd. Compar. Anat. Animals III. 44 A portion of the Intestine of a Hen, with a vestige of the yolk-duct..attached to it. 1965 Jrnl. Wildlife Managem. 29 528/2 In ducklings, a considerable quantity of yolk becomes obvious in that section of the gut below the yolk duct between 24 and 48 hours of age. 2013 B. M. Carlson Human Embryol. & Developmental Biol. (ed. 5) vii. 119/2 In a small percentage of adults, traces of the yolk duct persist as a fibrous cord or an outpouching of the small intestine known as Meckel's diverticulum. < as lemmas |
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