Cardiovascular system

• The pulmonary circuit carries blood to and from the lungs
• blood returning from the pulmonary circuit is received by the left atrium
• the right ventricle pumps blood through the pulmonary circuit
• The systemic circuit carries blood to all body tissues
• blood returning from the systemic circuit is received by the right atrium
• the left ventricle pumps blood through the systemic circuit
• deoxygenated blood pumped to the lungs receives oxygen
• the pericardium is a double walled sac that surrounds the heart
• the pericardium is made up of two layers, fibrous and serous pericardium
• fibrous pericardium protects, anchors, and prevents overfilling in the heart