the.com/intestinal
Of the gut: thirty feet of plumbing doing the work no one thanks it for.
means Relating to the intestines, the long coiled tube where digestion finishes and absorption happens.
from From Latin intestinus, meaning inward or internal, rooted in intus, within — literally the inside parts.
LengthSmall intestine alone runs about twenty feet coiled.
Second brainGut houses millions of its own neurons.
Surface areaFolds unfurl to roughly a tennis court.