(i) Identify any two parts from the given diagram which carry oxygenated and deoxygenated
blood.
(ii) Explain the process of double circulation with the help of a flow chart.
Answers
Answer:
(I) oxygeneted blood :-F and B (left atrium and left ventricle)
deoxygeneted blood :- E and A (right atrium and right ventricle)
(ii) Double circulation is a process in which blood enters the heart twice in a single circulation.
Explanation
When we take in air that air goes to aur lungs in lungs the alevoli are present wherre the exachnage of gases takes place. From alevoli oxygen is diffused into blood and that ocygeneted blood is carried out by pulmonary vein from lungs to heart and enters the left atrium. As it enters the left atrium from there the left atrium contracts and left ventricle relaxes and blood entres the left ventricle through bicuspid wall. As the left ventricle contraxts then blood comes out from the heart and through aorta is transported to the whole body. After cellular respiration CO2 is diffused into the blood in the cell and that deoxygeneted blood ia carried out thorugh vena cave and enters the right atrium of heart again. From right atrium is enters the right ventricle through tricuspid wall and it comes out from the heart through pulmonary artery and that deoxygeneted blood enters the lungs where the deoxygeneted blood is taken into the alevoli and the CO2 I s exhale out.
So here the blood enters two times and this is known as double circulation.
Answer:
(i) Oxygenated : B= left ventricle, D=aorta and F=left auricle/pulmonary vein
Deoxygenated: A= right ventricle , C= pulmonary artery and E=right auricle/vena cava
ii)The circulatory system in humans is a dual circulatory system. These have two distinct circuits and blood flow through the heart twice: the pulmonary circuit between the heart and lungs and the systemic circuit between the heart as well as the other organs. Blood is pumped from the heart to the lungs and also is redirected to the heart until that is spread to other organs and tissues within the body. The heart in the circulatory system pumps the blood through all heart lobes, including two arteries and two ventricles. The four chambers contained in the heart carry the blood in one way and limit the flow of blood back to the heart. The reason for pointing to the systemic circulation as a double circulatory system is because blood travels through the heart twice. The pump present on the left sends oxygen-rich blood all across the blood, while the right pump transfers deoxygenated blood to the lungs, where this becomes oxygenated blood and then flows directly to the heart. This flow of oxygenated and deoxygenated blood is essential to ensure the body's temperature.
Flow Chart:
⇢ pulmonary veins⇢⇢⇢⇢
⇡ ⇣
⇡ ⇠⇠⇠superior and
⇡ ⇣ ⇣ inferior vena
⇡ ⇣Heart ⇣ cava ⇡ ⇣ ⇣
⇡ ⇡
capillaries right left tissue
of lungs atrium atrium capillaries
⇡ ⇡
⇡ ⇡
⇡ right left branches branches ventricle ventricle of
of ⇣ dorsal
pulmonary ⇣ aorta
artery ⇣ ⇣ ⇡
⇡ ⇣ ⇣ ⇡
⇡ ⇣ ⇣ ⇡
⇡⇠pulmonary ⇠ ⇢aorta⇢⇢⇢
artery
Explanation:
Hope this helps you✌️