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Why is it called an artery if it does not carry oxygen-rich blood?

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Question

Why is it called an artery if it does not carry oxygen-rich blood?

Very Short Answer
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Solution

The pulmonary artery does not carry oxygen-rich blood but it carries blood away from the heart like all other arteries. Therefore, it is called an artery.

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Chapter 11: Transportation in Animals and Plants - SHORT ANSWER QUESTIONS [Page 59]

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NCERT Exemplar Science [English] Class 7
Chapter 11 Transportation in Animals and Plants
SHORT ANSWER QUESTIONS | Q 13. (b) | Page 59

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