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:
“Human beings will be happier—not when they cure cancer or get to Mars or eliminate racial prejudice or flush Lake Erie but when they find ways to inhabit primitive communities again. That’s my utopia.”
—Kurt Vonnegut, Jr. (b. 1922)
“For tamed and shabby tigers
And dancing dogs and bears,
And wretched, blind pit ponies
And little hunted hares.”
—Ralph Hodgson (c. 1871–1962)