Immature chorionic villi are larger and have more central blood vessels; thus, the diffusion distance for gas and nutrient exchange is larger and, therefore,<unk>  function is impaired. Image:<unk>  -- low mag. Low mag. Image:<unk>  -- high mag. High mag.
Placental villous immaturity
Fetal thrombotic vasculopathy
Maternal fetal stress transfer
Placental insufficiency
Maternal recognition of pregnancy
Fetal resorption
Transplacental carcinogenesis
Foetal cerebral redistribution