Biology, asked by hebamazhar, 7 months ago

does superior vena cava have valve? if no, then why there is no back flow of blood during contraction of right artium??

Answers

Answered by jyothsnarayavarapu39

Answer:

four chambers of the heart are the right atrium, the right ... No audio description ... If we inject dye into the superior vena cava, you can watch it pass through the heart ...

Explanation:

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does superior vena cava have valve? if no, then why there is no back flow of blood during contraction of right artium?? ​

Answers

does superior vena cava have valve? if no, then why there is no back flow of blood during contraction of right artium??