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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Mol Immunol. 2015 Mar 21;67(1):56–70. doi: 10.1016/j.molimm.2015.02.030

Figure 2.

Figure 2

Figure 2

Figure 2A. Schematic of a portion of a hemochorial placenta depicting comparable zones in human and rodent. Portion enclosed by dashed line is expanded in Figure 2B to illustrate in more detail the villous structure and maternal spiral artery with subtypes of trophoblasts and complement components/regulators of most interest.

Figure 2B. Schematic of hemochorial placenta illustrating subtypes of trophoblasts and associated selective complement components/regulators of interest that participate in normal placental development and protection of the trophoblast subpopulations from maternal complement attack. Intervillous space and maternal spiral artery is illustrated with maternal blood and plasma complement proteins bathing the villous structure for exchange of nutrients and oxygen with the fetal blood supply within the villous structure.