Veterinary Embryology 8.1 - 8.4: In what anatomical directions does the mesoderm expand with continued cell involution and proliferation?

Question

In what anatomical directions does the mesoderm expand with continued cell involution and proliferation?

Magdalena Badenhorst · Accepted Answer

Cranially, caudally and laterally (excluding the area immediately cranial to the primitive node, the prechordal plate and the cloacal membrane.
It expands beyond the periphery of the embryonal disc and between the trophoblast and extraembryonic endoderm of the entire yolk sac.

Veterinary Embryology 8.1 - 8.4

In what anatomical directions does the mesoderm expand with continued cell involution and proliferation?

Cranially, caudally and laterally (excluding the area immediately cranial to the primitive node, the prechordal plate and the cloacal membrane. It expands beyond the periphery of the embryonal disc and between the trophoblast and extraembryonic endoderm of the entire yolk sac.

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