Příklady yolk

• 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.

• No signs of resorption of yolk were detected in any test.

• The transverse yolk ducts unite in front of the ovary.

• Three oocyte membranes (cleaned of yolk without disturbing the cytoplasmic layer) were spread on a polystyrene plate and weighted down with metallic rings.

• Another relevant aspect to be considered in the study of vitellogenesis is the incorporation of lipids into yolk platelets.

• In the oocyte cortex were observed coated pits, coated vesicles, dense tubules, multivesicular bodies and primordial yolk spheres.

• If the cell division of the twins was late, just before conjoined twins would occur, a single yolk sac would be apparent on the sonogram.

• In the six eggs thus examined, all rotated their yolk mass towards the same side of the egg (< 90°) as the maturation spot meridian.