Section through anterior part of area pellucida in front of embryonic shield.
A, 1), but in the region of the embryonic shield they are very numerous (ser.
The posterior opacity is named by some authors the embryonic shield.
Section through same blastoderm, in the region of the embryonic shield.
embryonic shield n.
See embryonic disk.
embryonic disk n.
A platelike mass of cells in the blastocyst from which a mammalian embryo develops. Also called embryonic shield.
See germinal disk.