Changes

===Foetal Circulation===

===Foetal Circulation===

A large number of physiological processes that are necessary for the embryo’s survival, such as detoxification, gas exchange and waste removal, are carried out by the [[Female Reproductive Tract -Placenta - Anatomy & Physiology|placenta]] rendering organs such as the [[Liver - Anatomy & Physiology|liver]] and lungs surplus to requirement. There are a number of foetal circulatory shunts that ensure oxygen and nutrient rich blood flows directly to the most important organs, namely the brain, heart and adrenal glands.

Prior to birth the foetus is not capable of cadiovascular function and thus is relies on the maternal circulation to carry out gas, nutirent and waste exchange. The feotal and maternal blood never mix, instead they interface at the [[Female Reproductive Tract -Placenta - Anatomy & Physiology|placenta]]  

 

 

 

 

 

rendering organs such as the [[Liver - Anatomy & Physiology|liver]] and lungs surplus to requirement. There are a number of foetal circulatory shunts that ensure oxygen and nutrient rich blood flows directly to the most important organs, namely the brain, heart and adrenal glands.

====Shunt 1: The Ductus Venosus====

====Shunt 1: The Ductus Venosus====