"The pulmonary circulation is like a loop which runs from heart to the lungs. In this portion, deoxygenated blood received by the heart is transported to the lungs and the oxygenated blood is returned back to the heart."
"... to the right side of the heart, and from there the passage of blood into the pulmonary circulation is like a slow-moving flood - 5 liters per minute to the lungs."
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.