Placental barrier



placental barrier n.
The semipermeable layer of tissue in the placenta that serves as a selective membrane to substances passing from maternal to fetal blood.

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  • Placental circulation

    placental circulation n. Circulation of blood through the placenta during intrauterine life, serving fetal needs for aeration, absorption, and excretion.

  • Placental dystocia

    placental dystocia n. The retention or difficult passage of the placenta following delivery.



  • Placental growth hormone

    placental growth hormone n. See human placental lactogen.

  • Placental lobe

    placental lobe n. The unit of the human placenta, incompletely separated by septa, that contains the fetal cotyledon or cotyledons and the surrounding blood-filled intervillous space.



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