How chambered is the heart of a fish?

| April 30, 2021 | education

Fish are characterized by a two-chambered heart, consisting of one atrium and one ventricle. The circulatory system has one circle of blood circulation. The blood passes through the capillaries of the gills, is saturated with oxygen, and then enters the capillaries of the tissues of the body. Then it enters the hepatic and cardiac veins. In addition to the two-chambered heart in the circulatory system of fish, there are two more “chambers” – the venous sinus and the aortic cone. Blood enters the venous sinus from the hepatic and cardiac veins. Further, the blood passes into the atrium with valves, then into the ventricle and then into the aortic cone, which also has valves. After this, venous blood enters the abdominal aorta and then back to the gills.



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