Atria (Science: anatomy, cardiology) The thin-walled chambers of the heart that pump blood into the ventricles. Consists of right atrium and left atrium.
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the different components and functions of the human circulatory system dealt with in detail in this tutorial. The lymphatic system is also elucidated elaborately here...