Explain double circulatory system in human heart ?
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The majority of mammals (including humans) utilize a double circulatory system. This means we have two loops in our body in which blood circulates. One is oxygenated, meaning oxygen rich, and the other is deoxygenated, which means it has little to no oxygen, but a lot of carbon dioxide.
Double circulatory systems are important because they ensure that we are giving our tissues and muscles blood full of oxygen, instead of a mixture of oxygenated and deoxygenated blood. While it may take a bit more energy than a single circulatory system, this system is much more efficient!
Humans have a 4-chambered heart (some organisms have only two or three chambers in their hearts; these animals are typically reptiles and fish), and we separate the heart into right and left halves. Each half of a human heart has one atrium, which sits 'on top' of one ventricle. The right and left halves of the heart are separated by a layer of muscle tissue called the septum.
Double circulatory systems are important because they ensure that we are giving our tissues and muscles blood full of oxygen, instead of a mixture of oxygenated and deoxygenated blood. While it may take a bit more energy than a single circulatory system, this system is much more efficient!
Humans have a 4-chambered heart (some organisms have only two or three chambers in their hearts; these animals are typically reptiles and fish), and we separate the heart into right and left halves. Each half of a human heart has one atrium, which sits 'on top' of one ventricle. The right and left halves of the heart are separated by a layer of muscle tissue called the septum.
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