directionality of ions in cells
There will be loads of potassium on the inside and tons of sodium on the outside therefore things will like to go from a high to a low concentration. So potassium will always leave the cell and sodium will always enter the cell.
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.