The primitive pit is a depression in the center of the primitive node, connecting to the notochord. It consists of part of the primitive streak.
Famous quotes containing the words primitive and/or pit:
“Good music is very close to primitive language.”
—Denis Diderot (1713–1784)
“Violence does, in truth, recoil upon the violent, and the schemer falls into the pit which he digs for another.”
—Sir Arthur Conan Doyle (1859–1930)