Difference between the right and left atria?
In the mammalian four-chambered heart, the right atrium of the heart collects de-oxygenated blood from the body, pumps it into the right ventricle, which then pumps the blood into the lungs. The lungs oxygenate the blood, which gets pumped into the left atrium, which pumps the blood into the left ventricle. From the left ventricle, the oxygenated blood then gets dispersed throughout the body.
Are the tricuspid valve and the mitral valve located between the atria and allow the blood to flow from the atria to the ventricles?
Why are there valves between the atria and the ventricles and at the start of the aorta and the pulmonary arteries in the human heart?
The human heart is made of four chambers: left atrium left ventricle right atrium right ventricle Between the left atria and the left ventricle, you have your bicuspid/mitral valve Between the right atria and the right ventricle you have your tricuspid valve Between your left ventricle and the aorta you have your aortic semilunar valve Between your right ventricle and your pulmonary artery you have your pulmonic semilunar valve.
uricles are part of the atria and serve to increase the volume of the atria. The atria that they are a part of serve to direct blood into the ventricles and are not very muscular. The ventricles are far more muscular than the atria and serve to pump blood to either the lungs or the rest of the body ( the right and left ventricles respectively).