Perhaps they're hoping the the terms "trophoblast", "blastocoel", and "blastocyst" will disguise the fact that we're talking about a human being?.    From Wordnik.com.  [A Doctor's Perspective on Stem Cell Research] Reference

The blastocyst is a sphere made up of an outer layer of cells (the trophoblast), a fluid-filled cavity (the blastocoel), and a cluster of cells on the interior (the inner cell mass).    From Wordnik.com.  [Think Progress » FACT CHECK: Snow’s False and Misleading History of Stem Cell Research] Reference

I wonder if Fred Thompson knows how to spell "zygote" or "blastocoel"?.    From Wordnik.com.  [Yahoo! Buzz US: Top Stories] Reference

Cell migration is visible through the transparent blastocoel roof of the gastrula.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

Pmar1 (gfp) - expressing cells in c, h, m and b, g, l acquire mesenchymal character and ingress into the blastocoel.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

At the beginning of gastrulation, the blastocoel roof is one cell thick, and the dorsal lip of the blastopore forms below the equator of the embryo.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

DIC images in (B) d and h, (C) d and h, and (D) d illustrate the absence of detectable developmental defects in injected embryos. gfp-expressing cells containing Pmar1 in (D) panels g and h have adopted a mesenchyme phenotype and ingressed into the blastocoel at 20 h p.f. ActivinB Is a Critical Component of Both PMC and EM-GRNs Underlying Pmar1 - Dependent Induction.    From Wordnik.com.  [PLoS Biology: New Articles] Reference