Oxygen-rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left called ____.

right atrium

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left atrium

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left ventricle

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right ventricle

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Solution

The correct option is B left atrium
The left atrium receives oxygenated blood from the lungs and then empties the blood into the left ventricle. From there, the blood is ready to get pumped into the body to deliver oxygenated blood to all body tissues.

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Oxygen-rich blood from the lungs comes to the thin-walled upper chamber of the heart on the left called ___.

\begin{matrix} C o l u m n A & C o l u m n B (i) R i g h t a t r i u m & (a) P u m p s d e o x y g e n a t e d b l o o d t o l u n g s (i i) L e f t a t r i u m & (b) R e c e i v e s o x y g e n a t e d b l o o d f r o m l u n g s (i i i) R i g h t v e n t r i c l e & (c) P u m p s o x y g e n a t e d b l o o d t o t h e b o d y (i v) L e f t v e n t r i c l e & (d) 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 b o d y \end{matrix}

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