When the muscles of the heart relax

Blood flows from lungs into the left auricle

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Blood is pumped into the right auricle from all over the body

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Both a and b

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Blood flows from the left ventricle to the rest of the body

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Solution

The correct option is D Both a and b
When the muscles of the heart relax, the right atrium receives deoxygenated blood from all parts of the body through superior, inferior vena cava and coronary sinus. The left atrium receives oxygenated blood from the lungs through two pairs of pulmonary veins. Thus option C is the correct answer.

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Similar questions

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. 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.

During systemic circulation, deoxygenated blood flows from right ventricle of heart to lungs.

Which of the following is correct about the aorta?

I: It leaves the left ventricle carrying oxygenated blood to all parts of the body

II: It leaves the left auricle carrying the oxygenated blood to all parts of the body

III: It carries blood pumped from the heart to lungs

IV: It is the largest artery in the body

Q. In order for the blood to flow from right ventricle to left ventricle in mammalian heart, it must flow through

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