Table 1.

Volume percentages of the components of terminal villi

	% of villous volume	% of stroma volume
	Mean ± SEM (n = 8 placentas)
Stromal compartment	19.2 ± 3.4%
Extracellular matrix	13.1 ± 2.2%	71.0 ± 4.7%
All extracellular vesicles	0.7 ± 0.2%	3.9 ± 1.3%
Fibroblast‐like stellate cells	4.6 ± 1.1%	21.6 ± 4.4%
Macrophages	0.8 ± 0.3%	3.5 ± 1.2%