Megakaryopoietic cells in the yolk sac and liver of mouse embryos were examined by electron microscopy. At 10 days' gestation, yolk sac vitelline vessels contained a few free megakaryopoietic cells. On the basis of the development of demarcation membranes and granules, yolk sac megakaryopoietic cell
Age dynamics of the iron and copper content in the liver and yolk sac of chick embryos
โ Scribed by I. I. Besschetnov
- Book ID
- 104937925
- Publisher
- Springer US
- Year
- 1973
- Tongue
- English
- Weight
- 154 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0007-4888
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## Abstract During development, the chick embryo mobilizes the calcium it needs from two extraembryonic sources, initially from the yolk and later from the eggshell. Calcium may be hormonally regulated during avian embryogenesis, but details of this regulation are lacking. We investigated the effec