disadvantage of double circulatory system
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Double circulation is much more efficient than single. Oxygenated and Deoxygenated blood exchange takes place at one time in our body.
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DOUBLE CIRCULATION
the blood pumped by the right ventricle enters the
pulmonary artery, whereas the left ventricle pumps blood into the aorta
The deoxygenated blood pumped into the pulmonary artery is passed on
to the lungs from where the oxygenated blood is carried by the pulmonary
veins into the left atrium. This pathway constitutes the pulmonary
circulation. The oxygenated blood entering the aorta is carried by a
network of arteries, arterioles and capillaries to the tissues from where
the deoxygenated blood is collected by a system of venules, veins and
vena cava and emptied into the right atrium. This is the systemic
circulation.The systemic circulation provides nutrients, O,
and other essential substances to the tissues and takes CO, and other
harmful substances away for elimination. A unique vascular connection
exists between the digestive tract and liver called hepatic portal system.
The hepatic portal vein carries blood from intestine to the liver before it is
delivered to the systemic circulation. A special coronary system of blood
vessels is present in our body exclusively for the circulation of blood to
and from the cardiac musculature.
the blood pumped by the right ventricle enters the
pulmonary artery, whereas the left ventricle pumps blood into the aorta
The deoxygenated blood pumped into the pulmonary artery is passed on
to the lungs from where the oxygenated blood is carried by the pulmonary
veins into the left atrium. This pathway constitutes the pulmonary
circulation. The oxygenated blood entering the aorta is carried by a
network of arteries, arterioles and capillaries to the tissues from where
the deoxygenated blood is collected by a system of venules, veins and
vena cava and emptied into the right atrium. This is the systemic
circulation.The systemic circulation provides nutrients, O,
and other essential substances to the tissues and takes CO, and other
harmful substances away for elimination. A unique vascular connection
exists between the digestive tract and liver called hepatic portal system.
The hepatic portal vein carries blood from intestine to the liver before it is
delivered to the systemic circulation. A special coronary system of blood
vessels is present in our body exclusively for the circulation of blood to
and from the cardiac musculature.
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