Read the given process for circulation of blood carefully. Identify the incorrect parts of the process:
Deoxygenated blood is received by the left auricle from the lungs. From the left auricle, it enters the left ventricle which distributes blood to various tissues and organs of the body through the veins. The veins divide into capillaries in the body tissues and organs. The blood passes on the carbon dioxide and collects oxygen. This impure deoxygenated blood collected by the capillaries now flows into the arteries. Arteries carry the blood back to the heart and empty it into the right ventricle.

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Solution

Circulation of blood:
Circulation of blood takes place throughout the body by the pumping of heart.
Pulmonary veins carry oxygenated blood from lungs to left auricle of heart.
From left auricle blood passes to left ventricle.
From left ventricle, blood is distributed to various tissues, and organs of the body through arteries.
Arteries divide into capillaries in the tissues and organs of body.
The blood passes on nutrients and oxygen and collects carbon dioxide and the blood becomes impure.
This impure or deoxygenated blood collected by capillaries now flows into the veins.
Veins bring back the blood to the right auricle of heart.
Final answer: Oxygenated blood is received by the left auricle from the lungs. From the left auricle, it enters the left ventricle which distributes blood to various tissues and organs of the body through the arteries. The arteries divide into capillaries in the body tissues and organs. The blood passes on the nutrients and oxygen and collects carbon dioxide. This impure deoxygenated blood collected by the capillaries now flows into the veins. Veins carry the blood back to the heart and empty it into the right auricle.

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arteries carry oxygenated blood and veins carry dexygenated blood but when blood is transported through the body the pulmonary artery carries deoxygenated blood to the lungs and the pulmonary vein carries oxygenated blood from the auricle to the left ventricle. why does this hapen?

Match the parts of the heart in Column I with the direction of flow of blood in Column II
$\begin{matrix} C o l u m n I & C o l u m n I I (i) R i g h t V e n t r i c l e & (a) P u m p s d e o x y g e n a t e d b l o o d i n t o t h e p u l m o n a r y a r t e r y (i i) P u l m o n a r y V e i n s & (b) T a k e s d e o x y g e n a t e d b l o o d (i i i) L e f t A t r i u m & (c) R e c e i v e s b l o o d f r o m d i f f e r e n t p a r t s o f t h e b o d y . (i v) P u l m o n a r y A r t e r i e s & (d) B r i n g o x y g e n a t e d b l o o d f r o m l u n g s t o t h e h e a r t . (v) L e f t V e n t r i c l e & (e) P u m p s b l o o d i n t o t h e a o r t a . (v i) R i g h t A u r i c l e & (f) R e c e i v e s d e o x y g e n a t e d b l o o d f r o m t h e p u l m o n a r y v e i n s . \end{matrix}$

Q. Which of the following statement(s) wrong with regard to heart?
A. Left atrium receives deoxygenated blood from different parts of the body while right atrium receives deoxygenated blood from the lungs.
B. Right atrium receives deoxygenated blood from different body parts while right ventricle pumps deoxygenated blood to the lungs.
C. Left atrium receives oxygenated blood from lungs while left ventricle pumps oxygenated blood to different parts of the body.
D. Pulmonary vein carries deoxygenated blood to the lungs and pulmonary artery brings oxygenated blood towards the heart.

Dear Expert,

How come de-oxygenated blood from the right ventricle and auricle flows into the pulmonary ARTERY and oxygenated blood flows from the pulmonary VEIN into the left auricle and ventricle. Doesn't that deny the fact that oxygenated blood flows in the arteries and de-oygenated blood in the veins?

Q. How many pulmonary veins carry oxygenated blood from lungs to the left atrium ? And how many pulmonary arteries carry the deoxygenated blood from the right ventricle to the lungs?

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