Within the sprawling text is encapsulated what some readers may regard as the yolk of the egg, if not the pearl in the oyster.
The yolk follicles have no special arrangement, being generally in the form of widely distributed net formations.
The visceral yolk sac, allantois and amnion were dissected away from the fetal material and excess fluid was wiped clear prior to measuring the weight.
The exocoelomic cavity contains the yolk sac, which is connected to the primitive digestive tract and fetal circulation.
Ultrastructural analyses demonstrated that the blastomere cytoplasm contains a large number of mitochondria and vesicles, several filled with yolk material.
The examination of octanol-treated vitellogenic oocytes failed to reveal the presence of labelled yolk spheres.
The trend was in the order yolk sac endoderm epiblast derivatives > placenta.
Fully grown yolk platelets are the destination of most of the proteinaceous nutritive material to be internalised.
