muscle cells
"Muscle cells are like a balloon which is filled with water and lots of little components, including creatine kinase and myoglobin "
"Electrically, the cardiac muscle cells are like loaded springs. When a small impulse sets them off, they depolarize and contract."
"In fact, the connective tissue can actually limit the size of your muscle cells. Your muscle cells are like a pet goldfish attempting to grow in a restrictive bowl of connective tissue"

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.