Dorsal aorta

Dorsal aorta
Profile view of a human embryo estimated at twenty or twenty-one days old. (Dorsal aorta labeled at center left.)
Latin	aorta dorsalis
Gray's	subject #135 506
Carnegie stage	9

Each primitive aorta receives anteriorly a vein—the vitelline vein—from the yolk-sac, and is prolonged backward on the lateral aspect of the notochord under the name of the dorsal aorta.

The dorsal aortæ give branches to the yolk-sac, and are continued backward through the body-stalk as the umbilical arteries to the villi of the chorion.

The two dorsal aortae combine to become the descending aorta in later development.

External links

• Embryology at Temple Heart98/heart97a/sld017
• Embryology at UNSW Notes/git
• cardev-009 — Embryology at UNC