BI-1108
The heart
Biology · Secondary 3 · Hard · The heart
A student compares blood pressure in the right ventricle and in the left ventricle during one cardiac cycle. Which statement correctly explains why the left ventricle generates a higher pressure?
- Its muscular wall is thicker so it can pump blood at higher pressure to the whole body.
- It contains more valves, which directly increase the blood pressure.
- It receives oxygenated blood, which always has a higher pressure.
- It is closer to the lungs, so it must pump blood at higher pressure to reach them.
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