See Also: Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Blastoderm(medicine)
extraembryonic blastoderm(medicine)
embryonic blastoderm(medicine)
bilaminar blastoderm(medicine)
trilaminar blastoderm(medicine)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
medicine(1)(dictionary)
medicine man(encyclopedia)

Blastoderm (medicine)


blastoderm


In many eggs with a large amount of yolk, cell division (cleavage) is restricted to a superficial layer of the fertilized egg (meroblastic cleavage). This layer is termed the blastoderm. In birds it is a flat disc of cells at one pole of the egg and in insects an outer layer of cells surrounding the yolk mass.