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:
“In some ways being a parent is like being an anthropologist who is studying a primitive and isolated tribe by living with them.... To understand the beauty of child development, we must shed some of our socialization as adults and learn how to communicate with children on their own terms, just as an anthropologist must learn how to communicate with that primitive tribe.”
—Lawrence Kutner (20th century)
“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)