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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?

The gastrointestinal tract develops during the process of _____ from the _____ layer at about week 3 of development.

In regard to congenital heart anomalies, cyanotic defect (s) include:

During development in the human embryo 3 successive sets of kidneys form. Which set is rudimentary and non-functional?

Reflexive motions of the fetal arms and legs emerge between ____ and ____ weeks of development: