• blood
  • Plasmodia, in the form of spindle-shaped sporozoites, enter the vertebrate along with saliva from the mosquito and embed themselves in the endothelium of the blood vessels or in liver cells. (thefreedictionary.com)
  • After the plasmodia enter the mosquito's stomach along with the blood of the vertebrate, each microgametocyte gives rise to several flagelliform microgametes, which fuse in pairs with macrogametes, forming motile zygotes, or ookinetes. (thefreedictionary.com)