![Phil and Alex on Twitter: "I prayed for more than just a gestational sac (even though that's all we would need to see). Yolk sac made its first glimmer of appearance! I Phil and Alex on Twitter: "I prayed for more than just a gestational sac (even though that's all we would need to see). Yolk sac made its first glimmer of appearance! I](https://pbs.twimg.com/media/EF19V6QWsAUDaFH.jpg)
Phil and Alex on Twitter: "I prayed for more than just a gestational sac (even though that's all we would need to see). Yolk sac made its first glimmer of appearance! I
![Early pregnancy ultrasound measurements and prediction of first trimester pregnancy loss: A logistic model | Scientific Reports Early pregnancy ultrasound measurements and prediction of first trimester pregnancy loss: A logistic model | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-020-58114-3/MediaObjects/41598_2020_58114_Fig1_HTML.png)
Early pregnancy ultrasound measurements and prediction of first trimester pregnancy loss: A logistic model | Scientific Reports
![Bacteriology and mycology of foods. Food. V" 452 EXAMINATION OF EGGS .â ptTT'P' *"J^'W«^^pT,JTnj'-. Ij ovary, with minute ovules; 2-3, yolk sacs; 4, suture line; 5, empty yolk sac; 7, funnel Bacteriology and mycology of foods. Food. V" 452 EXAMINATION OF EGGS .â ptTT'P' *"J^'W«^^pT,JTnj'-. Ij ovary, with minute ovules; 2-3, yolk sacs; 4, suture line; 5, empty yolk sac; 7, funnel](https://c8.alamy.com/comp/RD8DW6/bacteriology-and-mycology-of-foods-food-vquot-452-examination-of-eggs-ptttp-quotjwptjtnj-ij-ovary-with-minute-ovules-2-3-yolk-sacs-4-suture-line-5-empty-yolk-sac-7-funnel-opening-into-oviduct-8-yolk-m-oviduct-9-albumen-secreting-region-10-albumen-being-secreted-11-yolk-passing-through-oviduct-12-germinal-disk-13-isthmus-14-uterus-15-large-intestines-17-cloaca-on-the-right-hand-side-of-the-figure-are-shown-from-the-top-downwrd-complete-egg-yolk-of-egg-incubated-for-sixteen-hours-completed-egg-in-uterus-l-isthmus-2-glands-of-uterus-RD8DW6.jpg)
Bacteriology and mycology of foods. Food. V" 452 EXAMINATION OF EGGS .â ptTT'P' *"J^'W«^^pT,JTnj'-. Ij ovary, with minute ovules; 2-3, yolk sacs; 4, suture line; 5, empty yolk sac; 7, funnel
![A very large yolk sac (Y) (mean diameter, 8.1 mm) and a living embryo... | Download Scientific Diagram A very large yolk sac (Y) (mean diameter, 8.1 mm) and a living embryo... | Download Scientific Diagram](https://www.researchgate.net/profile/San-Nung-Chen/publication/7446477/figure/fig3/AS:277742101778451@1443230285857/A-very-large-yolk-sac-Y-mean-diameter-81-mm-and-a-living-embryo-E-crown-rump_Q320.jpg)
A very large yolk sac (Y) (mean diameter, 8.1 mm) and a living embryo... | Download Scientific Diagram
![Figure 1 from Abnormal sonographic appearances of the yolk sac: which can be associated with adverse perinatal outcome? | Semantic Scholar Figure 1 from Abnormal sonographic appearances of the yolk sac: which can be associated with adverse perinatal outcome? | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/bb83aa1b15d3486410df97e925bab545af9e0ea1/2-Figure1-1.png)
Figure 1 from Abnormal sonographic appearances of the yolk sac: which can be associated with adverse perinatal outcome? | Semantic Scholar
![A) Ultrasound and hysteroscopic images of the yolk sac in a partial... | Download Scientific Diagram A) Ultrasound and hysteroscopic images of the yolk sac in a partial... | Download Scientific Diagram](https://www.researchgate.net/publication/338943119/figure/fig3/AS:959587041701916@1605794787729/A-Ultrasound-and-hysteroscopic-images-of-the-yolk-sac-in-a-partial-mole-pregnancy.png)
A) Ultrasound and hysteroscopic images of the yolk sac in a partial... | Download Scientific Diagram
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