what is double circulation?. Explain the process of double circulation in heart.
Answers
Answer:
The human circulatory system has three key components: blood vessels, blood and the heart. It is called a double circulatory system because blood passes through the heart twice per circuit.
The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart.
The left pump sends the newly oxygenated blood around the body. By the time this blood returns to the heart, it has returned to a deoxygenated state.
Circulatory System Diagram
Double Circulatory System for Biology GCSE Revision
Blood Passes Through The Heart Twice Per Circuit
Blood enters the heart
Deoxygenated blood from the body enters into the right atrium of the heart.
Blood pumped to lungs
This deoxygenated blood is pumped out of the heart and towards the lungs by the right ventricle.
Lungs oxygenate the blood
At the lungs, the deoxygenated blood exchanges carbon dioxide for oxygen. This is how it becomes oxygenated (contains oxygen).
Blood returns to the heart
Oxygenated blood returns to the left atrium of the heart.
Blood pumped to the body
This oxygenated blood is pumped out of the heart and to the body by the left ventricle.
Blood returns to the heart
The oxygenated blood gives its oxygen to body cells in exchange for carbon dioxide. The blood becomes deoxygenated and returns to the heart.
Want to learn more about Double Circulatory System?
Join Seneca to get 250+ free exam board specfic A Level, GCSE, KS3 & KS2 online courses.
Hope it is helping you
And please follow me
Answer:
The blood passes twice through the heart making one complete round through the body this is called double circulation system.
In double circulation system:-
The oxygenated blood from the lungs passes through the pulmonary veins and reaches to the heart's left atrium and then the heart pump the blood to the body from left ventricles through the aorta, after that the vanacava take the deoxygenated blood from the body and sent it to the heart's right atrium, and again the heart pump (deoxygenated blood) from right ventricle and send it to the lungs through pulmonary veins.
Thank you,