Biology, asked by 0493953683, 10 months ago

what do you understand by atrium and which is the longest atrium in our body

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Answered by jayane

Answer:

Atrium, in vertebrates and the higher invertebrates, heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart. Fishes have one atrium; amphibians, reptiles, birds, and mammals, two. Atrium.

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