working of heart in easy words
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The right atrium receives blood into the heart. In diagrams like the one below, this is the one on the top left of the image. This blood is deoxygenated as it has supplied it’s oxygen to where it is needed by our tissues and organs. It enters the right atrium of the heart via two large veins, the superior and inferior vena cava.
From the right atrium, the blood travels down into the right ventricle through the tricuspid valve. Valves in the heart prevent blood from flowing backwards.
From the right ventricle, the blood is pumped upwards to the lungs through the pulmonary arteries, passing through the pulmonary valve.
In the lungs, our blood picks up oxygen, which we call oxygenated blood. The contraction of the right ventricle is not strong enough to send the oxygenated blood all around the body after the lungs, so the oxygenated blood needs to return to the heart for another pump.
Entering the heart through the pulmonary veins, oxygenated blood comes into the left atrium. Continuing down through the mitral valve, it passes to the left ventricle.
From the diagram above, you can see that the muscle of the left ventricle (pictured in pink) is thicker than that of the right ventricle. This is because of the additional force needed to pump blood around the whole body rather than just the lungs.
From the right atrium, the blood travels down into the right ventricle through the tricuspid valve. Valves in the heart prevent blood from flowing backwards.
From the right ventricle, the blood is pumped upwards to the lungs through the pulmonary arteries, passing through the pulmonary valve.
In the lungs, our blood picks up oxygen, which we call oxygenated blood. The contraction of the right ventricle is not strong enough to send the oxygenated blood all around the body after the lungs, so the oxygenated blood needs to return to the heart for another pump.
Entering the heart through the pulmonary veins, oxygenated blood comes into the left atrium. Continuing down through the mitral valve, it passes to the left ventricle.
From the diagram above, you can see that the muscle of the left ventricle (pictured in pink) is thicker than that of the right ventricle. This is because of the additional force needed to pump blood around the whole body rather than just the lungs.
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Heyaa !!!
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hers a happy answer to ur question :-)
the heart functions as a double pump when you run for sometime or do any strenuous physical activity your heart beats fast this is because as such times the body needs more oxygen to release more energy through respiration to supply more oxygen the blood flows faster .
impure blood from the vein flows into the right Atrium of the heart from here the blood enters the right ventricle through an opening the impure blood is transported from the right ventricle to the lungs by the permanent artery gaseous exchange takes place in lungs the blood gives of carbon dioxide and takes in oxygen oxygen rich blood is carried to left Atrium by Pulmonary vein from here the blood flows through an opening to the left ventricle .
the left ventricle pumps oxygen blood to every part of body through the aorta the aorta is largest artery in the body the blood takes in carbon dioxide and returns to the right ventricle of the heart the blood is now come back into the lungs .
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:-) :-) Hope it help's u :-) :-)
:-) :-) Be brainly :-) :-)
:-) :-) Be happy :-) :-)
.
.
hers a happy answer to ur question :-)
the heart functions as a double pump when you run for sometime or do any strenuous physical activity your heart beats fast this is because as such times the body needs more oxygen to release more energy through respiration to supply more oxygen the blood flows faster .
impure blood from the vein flows into the right Atrium of the heart from here the blood enters the right ventricle through an opening the impure blood is transported from the right ventricle to the lungs by the permanent artery gaseous exchange takes place in lungs the blood gives of carbon dioxide and takes in oxygen oxygen rich blood is carried to left Atrium by Pulmonary vein from here the blood flows through an opening to the left ventricle .
the left ventricle pumps oxygen blood to every part of body through the aorta the aorta is largest artery in the body the blood takes in carbon dioxide and returns to the right ventricle of the heart the blood is now come back into the lungs .
.
.
:-) :-) Hope it help's u :-) :-)
:-) :-) Be brainly :-) :-)
:-) :-) Be happy :-) :-)
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