Placenta

toc 1375284826 = __Definition__: = Specialized organ that allows substances to be transferred between the mother to the embryo and from embryo to mother,without their blood mixing. HGD,Chapter 3 p.61

= __Examples__: =

= __Analogies__: = - Placenta is to woman, as egg shell is to chicken. you could also think of a placenta as two cities with a train system going back and forth from each other. city A transfers people to city B on the train, and city B transfers people to city A on the train. so going off of the definition, the train(placenta) transfers substances(people) from City A to City B and vise versa(mother and embryo).

= __Mnemonics__: =

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=__In the News__:= Israeli researchers have reported that cells form the placenta may one day be used to produce human eggs for women who do not ovulate. women who who want to become pregnant but do not ovulate have very few choices besides harvesting eggs for other women. Israeli researchers have stated that it may be possible to generate a human egg from amniotic membrane cells for the placenta. you can read more by clicking on the link below.

@http://israel21c.org/health/placenta-may-be-a-source-for-human-eggs/

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