One side to take the deoxygenated blood from the body and send it to the lungs and the other side to receive the oxygenated blood from the pulmonary system and pump it out to the bocy for use.
they both have a four chambered heart
Birds have a 4-chambered heart, a characteristic in common with mammals.
Mammals, birds, and crocodilians have a four-chambered heart.
Alligators have a 4 chambered heart, just like birds and mammals
Mammals and birds have four-chambered hearts.
No. Birds have only one heart, but they have four chambered hearts like all mammals and crocodiles do.
The heart of crocodiles has a more complex structure compared to other reptiles. It has a four-chambered heart similar to birds and mammals, allowing for efficient oxygenation of blood. This adaptation enables crocodiles to have greater endurance and performance in aquatic environments.
Birds, all mammals, and crocodiles all have four chambered hearts
I suggest you get a copy of Homer Smith's book: From Fish to Philosopher. Start with fish; they don't need a separate pulmonary system (they have gills), to amphibians who have a 3 chambered heart, up to mammals and birds who require essentially two completely separate systems for pulmonary and systemic circulation.
Mammals and birds do not have a sinus venosus but rather a sinoatrial node. The sinoatrial node is a remnant of the sinus venosus and performs the function of a pacemaker for the heart.thank god for this site :)
The bald eagle, a bird, has a four-chambered heart, as do all other birds and mammals.
Well, both birds and mammals have four heart chambers. So, there is your answer!