File:LewisHarrison1966 fig05.jpg
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Fig. 5. Appearance of the embryo with its yolk-sac duct, and the implantation site. The yolk-sac contains a collection of erythrocytes in its lumen. The distal portion of the yolksac duct is being constricted off from the remainder. Chorionic villi in the upper part of the figure can be seen to be branching. Streamers of syncytiotrophoblast are in process of forming a trophoblastic shell. Some degeneration of the uterine glands is visible. x 71.
Reference
Lewis BV. and Harrison RG. A presomite human embryo showing a yolk-sac duct. (1966) J Anat. 100(2): 389-96. PMID: 5954785
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:18, 6 August 2017 | | 1,000 × 871 (184 KB) | Z8600021 (talk | contribs) | Fig. 5. Appearance of the embryo with its yolk-sac duct, and the implantation site. The yolk-sac contains a collection of erythrocytes in its lumen. The distal portion of the yolksac duct is being constricted off from the remainder. Chorionic villi in... |
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