Veterinary Embryology 8.5: An arterial ring, the __1__, develops in the mesoderm around the __2__ placenta (see Fig. 18). It is formed by the two vitelline arteries; however, the __3__ artery soon disappears and only the __4__ artery remains connected to the __1__.

Question

An arterial ring, the __1__, develops in the mesoderm around the __2__ placenta (see Fig. 18). It is formed by the two vitelline arteries; however, the __3__ artery soon disappears and only the __4__ artery remains connected to the __1__.

Magdalena Badenhorst · Accepted Answer

1. Sinus terminalis
2. chorio-vitelline
3. right
4. left

Veterinary Embryology 8.5

An arterial ring, the 1, develops in the mesoderm around the 2 placenta (see Fig. 18). It is formed by the two vitelline arteries; however, the 3 artery soon disappears and only the 4 artery remains connected to the 1.

1. Sinus terminalis 2. chorio-vitelline 3. right 4. left

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