"A blastocyst is like a hollow ball composed of many cells. Cells on one side of the blastocyst become the inner cell mass, which is destined to become the embryo proper."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.