Circulatory System Variations

Different Chambered Hearts Fish heart (2 chambered) = 1 atrium 1 ventricle Single circulation Reptile/Amphibian (3 chambered) = 2 atria 1 ventricle Both oxygenated blood and deoxygenated blood are mixed double circulation Mammalian (4 chambered)= 2 atria 2 ventricles Both oxygenated blood and deoxygenated blood are separate double circulation Link to Lecture Slides: *Due to the description character limit the full work cited for “Ci