Exchange of cells between the mother and the fetus, Biology

Assignment Help:

Q. Is there an exchange of cells between the mother and the fetus through the placenta?

Under usual conditions there is no passage of cells across the placenta during gestation and the placenta has a smooth mucosa separating the richly vascularized region in contact with the mother's endometrium from the umbilical cord in contact with the fetal blood this barrier is called as placental barrier although permeable to some substances (selective permeability) the placental barrier forbids the passage of cells.


Related Discussions:- Exchange of cells between the mother and the fetus

The denver development screening test (ddst), THE DENVER DEVELOPMENT SCREEN...

THE DENVER DEVELOPMENT SCREENING TEST (DDST) The Denver Development Screening Test is a standardized test to assess gross motor, fine motor, language and social development

What is cellular regeneration, What is cellular regeneration? How is mitosi...

What is cellular regeneration? How is mitosis related to this process? Some tissues are able to regenerate when injured. The liver, for instance, regenerates when small pieces

Explain the endosperm of angiosperms, How different are the endosperm of gy...

How different are the endosperm of gymnosperms and the endosperm of angiosperms? In gymnosperms the endosperm is haploid (n), it is known as primary endosperm. In angiosperm th

What is hdls, HDLs have the opposite function to that of LDLs in which they...

HDLs have the opposite function to that of LDLs in which they deleted cholesterol from the tissues.  The HDLs are synthesized in the blood mainly from components derived from the d

Bilateral - metazoa, Bilateral - Metazoa Bilaterally symmetrical anima...

Bilateral - Metazoa Bilaterally symmetrical animals have the major axis running from head (anterior) to tail (posterior). They have a ventral (lower) and dorsal (upper) surfac

Total arterial re-vascnlarisation, Total Arterial Re-vascnlarisation :  In...

Total Arterial Re-vascnlarisation :  In total arterial re-vascularisalion (TAR) end of the right internal mammary artery (RIMA) or radial arlery (RA) is anastomosed to the side of

Explain lauric fats - edible fats, Lauric Fats  Fats of this group are ...

Lauric Fats  Fats of this group are derived from certain species of palm, such as coconut. The fats are characterized by their high content of lauric acid (40 - 50%), moderate

Pyramid of biomass - ecological pyramids, Pyramid of Biomass - Ecological P...

Pyramid of Biomass - Ecological Pyramids The pyramid of numbers is not a very good method to use if the organisms at different trophic levels are of greatly differing sizes. T

Plants are supplied with adequate amount of phosphorus, Plants are supplied...

Plants are supplied with adequate amount of phosphorus Phosphorus has also been associated with early maturity of crops particularly the cereals. Its shortage is accompanied by

Explain the nonpolar molecular attractions, Explain the Nonpolar Molecula...

Explain the Nonpolar Molecular Attractions in basic chemistry? Nonpolar Molecular Attractions :  Van der Waals forces and hydrophobic interactions are weak (not as strong

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd