describe wgole process if double circulation
Answers
Double circulation is the most efficient way of circulation. Here, in humans, the four-chambered heart, arteries, veins, and capillaries all have a vital role to play. Blood gets pumped out of the heart. This blood goes to different organs and then blood again comes back to the heart. All this happens in a very systematic way through the different arteries and veins carrying oxygenated and deoxygenated blood.
In double circulation, there are two pathways in which blood flows. They are:
#Pulmonary pathway
#Systemic pathway.
The pulmonary circulation or pathway carries the deoxygenated blood from the right side of the heart to the lungs. Exchange of oxygen and carbon dioxide takes place in the lungs and the blood is now oxygenated (with oxygen).
Through the systemic circulation, oxygenated blood travels from the left side of the heart to the other areas of the body. At various organ sites, exchange of gases, nutrients, and waste through lymph occurs. This deoxygenated blood again goes back to the right side of the heart.
The pulmonary circuit and the systemic circuit work together. This ensures that deoxygenated blood goes to the lungs through the pulmonary artery while the oxygenated blood from the aorta reaches the different organs and tissues.
The pure oxygenated blood goes from lungs to left ventricle through pulmonary vein and after goes to left atrium and goes to body by aorta and the deoxygenated blood from body goes to right ventricle through venacava and from right ventricle goes to right atrium and from the goes to lungs for purification.Thus this process is called double circulation.