title: Vitelline
text: # Vitelline
  
  Vitelline may refer to:
  
  ## Embryology
  
  * Vitelline arteries, arteries that bring blood to the yolk sac
  * Vitelline circulation, the system of blood flowing between an embryo and its yolk sac
  * Vitelline cyst, a developmental defect relating to the closure of the vitelline duct
  * Vitelline duct, a tube that joins the yolk sac to the midgut lumen of a human embryo
  * Vitelline membrane, membrane surrounding an ovum
  * Vitelline veins, veins that drain blood from the yolk sac
  
  ## Birds
  
  * Vitelline masked weaver (Ploceus vitellinus), a species of bird endemic to Africa
  * Vitelline warbler (Setophaga vitellina), a songbird species found in the Cayman Islands and Honduras
  