Veterinary Embryology 8.5: The umbilical cord is covered by simple squamous amniotic epithelium. It contains the ______1_____, __2__, _____3_____ and __4__. The two arteries are spirally twisted around each other. The right __5__ later completely disappears. The __4__ remains open until just before birth but the __2__ closes at about day 70. The umbilical cord can be as long as _6_ cm and is, relatively, the longest of all domestic mammals.

Question

The umbilical cord is covered by simple squamous amniotic epithelium. It contains the ______1_____, __2__, _____3_____ and __4__. The two arteries are spirally twisted around each other. The right __5__ later completely disappears. The __4__ remains open until just before birth but the __2__ closes at about day 70. The umbilical cord can be as long as _6_ cm and is, relatively, the longest of all domestic mammals.

Magdalena Badenhorst · Accepted Answer

1. Aa. and Vv. umbilicales
2. vitelline duct
3. Aa. and Vv. vitellinae
4. allantoic duct
5. V. umbilicalis
6. 25

Veterinary Embryology 8.5

1. Aa. and Vv. umbilicales 2. vitelline duct 3. Aa. and Vv. vitellinae 4. allantoic duct 5. V. umbilicalis 6. 25

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