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)
“It’s well
If God who holds you to the pit of hell,
Much as one holds a spider, will destroy,
Baffle and dissipate your soul.”
—Robert Lowell (1917–1977)