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True/False: At 11- weeks: The intestines have returned to the abdominal region from their site of herniation in the yolk sac.

When the cells within the zygote begin to divide rapidly, these cells are called

Gastrulation is the process when cells of the embryo:

Pharyngeal arches form after neural tube closure. Arch one will become the ___________.

The respiratory system is an outgrowth of the ________ that develops at the end of week ___.

The Pancreas develops from the _______ layer.

Reduction in utero-placental circulation results in:

During embryonic folding the process that establishes the basic plan for all organ systems is called?

A full complement of functional alveoli do not appear until?

The critical substance that supports lung maturation and function outside the uterus is called?