Placental cotyledon

Placental cotyledon
Structure of the placenta, with a placental cotyledon marked in rectangle.
Gray's	subject #12 63

In human development, the cotyledons are the approximately 15-30 separations of the desidua basalis of the placenta, separated by placental septa.^[1] Each cotyledon consists of a main stem of a chorionic villus as well as its branches and subbranches etc.^[1]

Vasculature

The cotyledons receive fetal blood from chorionic vessels, which branch off cotyledon vessels into the cotyledons, which, in turn, branch into capillaries.^[2] The cotyledons are surrounded by maternal blood, which can exchange oxygen and nutrients with the fetal blood in the capillaries.

References

1. ^ ^{a b} Page 565 in: Varney, Helen; Helen Varney Burst; Kriebs, Jan M.; Gegor, Carolyn L. (2004). Varney's midwifery. Boston: Jones and Bartlett Publishers. ISBN 0-7637-1856-4.  [1]
2. ^ Gordon, Z.; Elad, D.; Almog, R.; Hazan, Y.; Jaffa, A. J.; Eytan, O. (2007). "Anthropometry of fetal vasculature in the chorionic plate". Journal of Anatomy 211 (6): 698–706. doi:10.1111/j.1469-7580.2007.00819.x. PMC 2375851. PMID 17973911. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2375851.  edit

External links

• Diagram (page in French)

This anatomy article is a stub. You can help Wikipedia by expanding it.v · Categories: Developmental biology Embryology Anatomy stubs Wikimedia Foundation. 2010. Игры ⚽ Нужно решить контрольную? Cotyledon (plant) Cotylolabium Look at other dictionaries: cotyledon — 1. See maternal c., fetal c.. 2. In plants, a seed leaf, the first leaf to grow from a seed. 3. A placental unit. See maternal c.. [G. kotyledon, any cup shaped hollow] fetal c. a unit of the fetal …   Medical dictionary twin transfusion syndrome — twin–twin transfusion syndrome a syndrome caused by twin to twin transfusion (q.v.); the donor twin develops hypovolemia, hypotension, anemia, microcardia, and growth retardation, while the recipient develops hypervolemia, hypertension,… …   Medical dictionary Placenta — For the ancient Roman bread, see placenta (food). For the placenta of fruit, see placentation. Placenta Placenta Precursor …   Wikipedia Chorion — For the chorion in invertebrate eggs, see Chorion (egg). Chorion Diagram showing earliest observed stage of human embryo …   Wikipedia Embryo — An embryo (from Greek: Polytonic|ἔμβρυον , plural Polytonic|ἔμβρυα , lit. that which grows, from en in + bryein to swell, be full ) is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division… …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”