What is the purpose of a frogs heart cutaway

The purpose of cutting a frog heart it too relate how the heart structure is. It is just a small scale of the human heart.

As the right side of a frog's heart receives deoxygenated blood from the body, and the left side receives freshly oxygenated blood from the lungs, the two streams of blood mix together in the ventricle, sending out a concoction that is not fully oxygenated to the rest of the frog's body.

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