Primitive Pit

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 site of the true bottomless financial pit is the toy store. It’s amazing how much a few pieces of plastic and paper will sell for if the purchasers are parents or grandparent, especially when the manufacturers claim their product improves a child’s intellectual or physical development.
    Lawrence Kutner (20th century)