what prevents oxygenated and deoxygenated blood from mixing in ventricle of frog's heart
What is a resting pulse rate? When a frog breathes, the oxygenated blood and the deoxygenated blood flow through separate atria, or chambers of the heart. Both bloodstreams then enter a common ventricle, the third chamber of their heart. Narrow cavities divide up this ventricle, however, so as to prevent the blood types from mixing profusely. The two different types of blood then pump into different cardiovascular pathways. The oxygenated blood enters the aorta and the deoxygenated blood flows into the pulmonary artery.