Which one represents pulmonary circulation?

Left auricle (oxygenated blood)

\to

lungs (deoxygenated blood)

\to

Right auricle

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Left auricle (deoxygenated blood)

\to

lungs (oxygenated blood)

\to

Right auricle

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Left auricle (oxygenated blood)

\to

lungs (deoxygenated blood)

\to

Left auricle

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Right auricle (deoxygenated blood)

\to

lungs (oxygenated blood)

\to

Left auricle

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Solution

The correct option is D Right auricle (deoxygenated blood) $\to$ lungs (oxygenated blood) $\to$ Left auricle
Pulmonary circulation is the flow of deoxygenated blood to lungs and return of oxygenated blood to the heart.
Deoxygenated blood from the body parts is brought to right auricle by the vena cava.
The blood is pumped to the right ventricle from the right auricle.
From the right ventricle, deoxygenated blood is carried to lungs by pulmonary artery.
The blood gets mixed with oxygen in the lungs and is carried to left auricle of heart by pulmonary vein.
So, the correct answer is 'Right auricle (deoxygenated blood) → lungs (oxygenated blood) → Left auricle'.

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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. The oxygenated blood is carried from lungs to left auricle by

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.

Q. Assertion :Pulmonary circulation consists of flow of deoxygenated blood from right ventricle to the lungs and flow of oxygenated blood from lungs to the left atrium. Reason: Systemic circulation consists of flow of oxygenated blood from the left ventricle to all parts of the body and deoxygenated blood from different parts to right atrium.

Which of the following statement(s) is/are true about the heart?

(i) Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs.

(ii) Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs.

(iii) Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts.

(iv) Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body.

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