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. 2016 Jul 28;2(7):e00135. doi: 10.1016/j.heliyon.2016.e00135

Table 1.

Mean values of placental parameters determined by stereological methods for the placenta of Sudanese women. Values for the intervillus space and the villi pertain to the mean placental global volume (487.69 cm3) and values for the fetal components pertain to the mean volume of the placental villi (318.66 cm3).

Parameter Percentage volume Absolute values
Mean ± SD
Volume of
intervillus space		 34.7% 169.34 ± 20 (cm3)
Volume of placental villi 65.3% 318.66 ± 20 (cm3)
Volume of
fetal blood capillaries		 13% 41.42 ± 14.47 (cm3)
Volume of fetal connective tissue and blood vessels larger than capillaries 87% 277.23 ± 16.7 (cm3)
Surface area of trophoblast
(villus surface area)		 - 12.59 ± 1.02 (M2)