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:
“That primitive head
So ambitiously vast,
Yet so rude in its art,
Is as easily read
For the woes of the past
As a clinical chart.”
—Robert Frost (1874–1963)
“The pit of a theatre is the one place where the tears of virtuous and wicked men alike are mingled.”
—Denis Diderot (1713–1784)