CardioVascular System Handouts

The document discusses the cardiovascular system which has two divisions: the lymphatic system which returns tissue fluid to the bloodstream and filters tissue fluid without a pump, and the blood circulatory system. It then focuses on the heart, describing it as the major pumping structure of the circulatory system located in the thoracic cavity. The heart is enclosed in a sac called the pericardium and has an inner lining called the endocardium as well as chambers including the atrium and ventricle.