Development of the Aortic Arches

Aortic arch vessels develop from the 5th through 7th week:

And another view:

From:

1) Cardiovascular Embryology, http://www.indiana.edu/~anat550/cvanim/index.html

2) Development of the arteries, http://www.embryology.ch/anglais/pcardio/popupcardio/video/aortenvideo.html

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