Standard Science Primary 5 Systems

Which chamber of the heart receives oxygen-rich blood directly from the lungs?

A Left atrium
B Right atrium
C Right ventricle
D Left ventricle
Show Worked Solution

Worked Solution

Step 1: Oxygenated blood travels from the lungs via the pulmonary vein. Step [2-9]: This blood enters the heart on the left side. Step [2-9]: Specifically, it enters the upper chamber, which is the left atrium.

Correct answer: Left atrium

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