Question

How are amphibians able to mostly keep oxygenated and deoxygenated blood separated and prevent mixing in the ventricle?

Answer 1

Amphibian hearts have a ridge within the ventricle that diverts about 90% of the oxygen-poor blood from the right atrium into the pulmocuteneous circuit and oxygen-rich blood from the left atrium into the systemic circuit.

Answer 2

pulmo what? o-O

Answer 3

So I was right about the atria?

Answer 4

pulmo-cute-neous
makes me think plum cuteness