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Atlas of Human Embryos Chapter   Figure

C-8 dermatome, C-8 neural crest, amnion, coelom, communication between coelom and extraembryonic coelom, dorsal mesentery, extra-embryonic coelom, left umbilical vein, mesonephric duct, mesonephros, midgut, postcardinal vein, right umbilical vein, septum transversum, seventh dorsal intersegmental artery (subclavian), subcardinal vein, upper limb bud, ventral anastomosis of vitelline veins, vitelline plexus, yolk sac endoderm

A section through the C-6 neural crest, cranial end of the mesonephros and hepatic antrum.

Observe:
1. The attachment of the amnion to the ventral body wall.
2. The origin of the hepatic antrum from the ventral aspect of the duodenum. The antrum will give rise to the gall bladder and bile ducts.
3. The cranial end of the vitelline veins.
4. The medial position of the subcardinal vein to the mesonephros.
5. The cranial part of the yolk sac.


Keywords: C-8 dermatome, C-8 neural crest, amnion, coelom, communication between coelom and extraembryonic coelom, dorsal mesentery, extra-embryonic coelom, left umbilical vein, mesonephric duct, mesonephros, midgut, postcardinal vein, right umbilical vein, septum transversum, seventh dorsal intersegmental artery (subclavian), subcardinal vein, upper limb bud, ventral anastomosis of vitelline veins, vitelline plexus, yolk sac endoderm

Source: Atlas of Human Embryos.