File:Placental volume graph.jpg

From Embryology

Original file ‎(800 × 628 pixels, file size: 54 KB, MIME type: image/jpeg)

Term Placenta Measurements

Morphometric indices at term of placental composition, villous capillarization and the mean cross-sectional areas of peripheral villi and capillaries.


Template:Placental links

Variable Unit Placenta
Intervillous space mL 213
Stem villi mL 71.4
Peripheral villi mL 326
Trophoblast mL 95.5
Stroma mL 184
Fetal capillaries mL 46.9
Non-parenchyma mL 41.5
Peripheral villi km 89.2
Fetal capillaries km 310
TS area villi µm2 3700
TS area capillary µm2 150
Capillaries mL mL-1 0.147
Length ratio km km-1 3.6

(data from a study sample of 15 normal placenta, mean placental volume, 652 ml).[1][2]


Data

  • Microscopical fields on stained sections were selected by systematic uniform random sampling and analysed stereologically to estimate the volumes of placental compartments and total lengths of villi and fetal capillaries.
  • Mean cross-sectional areas of peripheral villi and capillaries, together with measures of villous capillarization (capillary volume densities and capillary : villus length ratios), were derived from global volumes and lengths.

Reference

  1. ↑ <pubmed>18328557</pubmed>
  2. ↑ <pubmed>19141109</pubmed>

File history

Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan

GwalagizhiNyangagiDimensionsUserComment
current11:43, 3 March 2012Thumbnail for version as of 11:43, 3 March 2012800 × 628 (54 KB)Z8600021 (talk | contribs)==Term Placenta Measurements== Morphometric indices at term of placental composition, villous capillarization and the mean cross-sectional areas of peripheral villi and capillaries, data from a study sample of 15 normal placenta (mean placental volume, 6