Circulatory system essay
The systemic circuit is the circulation path between the heart and the rest of the body, except the lungs. After the oxygen-rich blood in the left ventricle passes through the pulmonary circuit, it leaves the cardiovascular system. Heart disease is the leading cause of death for both men and women in the United States each year, according to the Centers for Disease Control. Get an original essay. The main organs that make up the respiratory system consist of three main parts: the respiratory tract, the lungs, and the respiratory muscles. Within these three major parts are organs that pave the way for a healthy respiratory system. The respiratory tract, including the nose, nasal cavity, mouth, oral cavity.