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)
“Let us put an end to self-inflicted wounds. Let us remember that our national unity is a most priceless asset. Let us deny our adversaries the satisfaction of using Vietnam to pit Americans against Americans.”
—Gerald R. Ford (b. 1913)