Question

what is a special feature of heart which dose not allow mixing of blood when oxygen rich and carbondioxide rich blood reaches the heart ?

Answer 1

atrio venricular septum is the structure that prevents the mixiong of the blood
hope it helps

Answer 2

The presence of septum in the heart does not allow the ‘mixing of oxygen-rich’ and ‘carbon dioxide-rich bloods’.  

Explanation:

• As blood is carried into the heart from different ‘parts of the body’, this deoxygenated blood is rich in carbon dioxide.  

• This blood is carried into the ‘lungs for oxygenation’. The oxygenated blood is then pumped to the ‘left atrium’ and carried for systemic circulation.  

• The septum which is made of muscles, separates the two types of blood.

• The valves in each of the ‘atrium and ventricle’ allows the blood to be pumped.  

Learn more about presence of septum in the heart

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