A study of embryos shows that in all vertebrates six arterial arches link the ventral aorta with a pair of lateral dorsal aortae on each side of the body. The latter unite posteriorly to form a single median dorsal aorta wich takes blood to the body.[well established][VHOG]

Normally regresses in humans

uberon

UBERON:0005622

• right umbilical artery
• subclavian artery

• descending aorta