"So a vesicle is like a soap bubble - very small - and it is surrounded by a membrane, just like a soap bubble is surrounded by a film of soap, and inside it is the neurotransmitter. And the entire presynapse, or presynaptic neuron terminal, is also surrounded by a membrane."
"The word comes from the Latin for "little bladder." Vesicles that fill with minerals are called amygdules; that is, if a vesicle is like a mold, an amygdule is like a cast"
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.