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:
“An Englishman, methinks,—not to speak of other European nations,—habitually regards himself merely as a constituent part of the English nation; he is a member of the royal regiment of Englishmen, and is proud of his company, as he has reason to be proud of it. But an American—one who has made tolerable use of his opportunities—cares, comparatively, little about such things, and is advantageously nearer to the primitive and the ultimate condition of man in these respects.”
—Henry David Thoreau (1817–1862)
“the hind
stepped down
into the pit of
the empty
flowerpot”
—William Carlos Williams (1883–1963)