Glossary

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Subject:

the blood circuit from the heart to the lungs and back to the heart.

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the structure that separates the right ventricle from the pulmonary artery. It prevents the...

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a blood vessel that returns oxygenated blood from the lungs to the left atrium of the heart.

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the space in the middle of the tooth which contains cells, blood vessels and a nerve.

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a strong ring of smooth muscle at the end of the pyloric canal which lets food pass from the...

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