Yolk plug
... edible endothermal cells surrounded by the
blastopore of an ... ... be seen within the confines of ... as the yolk plug . ... the circular-shaped
blastopore and " yolk plug " of vegetal pole macromeres. ... end of the embryo extends ... ...
blastopore and Frog yolk plug . These slides only ...
Dorsal lip
... in Amphibian Embryos ... region of the
blastopore lip of one embryo will induce gastrulation ... in the ... By transplanting the dorsal
blastopore lip onto the ventral side of another host ... This dorsal
blastopore lip was named the "Organizer" because of its ...
Blastopore
... A
blastopore is an opening into the archenteron during the ... the mouth (stoma) develops in relation to the
blastopore . Protostome derives from the Greek word ... neural tube, the primitive nervous system.
blastopore synonyms. ...
Primitive streak
... is complete the primitive streak disappears. ... The primitive gut that forms during gastrulation in the developing blastula is ...
blastopore in amphibians and fish, and the primitive streak in birds and mammals. ... Britannica online encyclopedia article on primitive streak ...
Deuterostome
... Echinodermata, Hemichordata and Chordata. ... Most previous hypotheses of deuterostome origins have assumed that the ... Deuterostome .
blastopore becomes: mouth. mouth. anus. anus. anus. cleavage: ... phyla and the chaetognaths) should be included in the deuterostome clade. ... They ...
Archenteron
... ... gastrula n. , pl. -las or -lae ( ). An embryo at the stage following the blastula, consisting of a ... archenteron . neurula. gastrulate.
blastopore ... ... staining is detected in the invaginating archenteron (an endomesodermal tissue) ... mesenchyme founder cells, which occupy the tip of ...
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