Edexcel IGCSE Biology · Spec 2.65-2.66
The Heart
The four chambers of the heart, the path blood takes through it, and why the left ventricle wall is thickest.
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The Heart
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Spec 2.65-2.66
What you need to know
- Name the four chambers of the heart
- Describe the path blood takes through it
- Explain why the left ventricle has a thicker wall
Active recall
Quick check
Answer each question before opening the answer.
Name the four chambers of the heart and say which side carries deoxygenated blood.
Right atrium, right ventricle, left atrium, left ventricle. The right side carries deoxygenated blood.
Why is the wall of the left ventricle thicker than the right?
It has to pump blood at high pressure all the way around the body; the right only pumps to the nearby lungs.
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