QUESTION 2

For the five descriptions below, first select the descriptor's radio button, then click on the appropriate structure on the image in the left frame.

Receives blood from the two atria.
Receives blood from the sinus venosus.
Receives blood coming back from the lungs.
Contains a valve that helps separate oxygenated and deoxygenated blood.
Some blood passes through this chamber twice in one trip through the circulatory system.

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