PSL201Y1 Study Guide - Midterm Guide: Tricuspid Valve, Cardiac Muscle Cell, Artificial Cardiac Pacemaker
Document Summary
The three main components of the cardiovascular system. A muscular pump that drives the flow of blood through blood vessels. Sensory & endocrine functions (regulates blood pressure and volume) Sensory & effector organs (regulates blood pressure & distribution) Fluid that circulates around the body carrying materials to and from the cells. With nervous system acts as a communication link. A more complex organism requires an integrated cardiovascular system. The heart is a good solution to a common problem. The heart is made up of 4 chambers + internal structure. The ventricles occupy the bulk of the heart. The arteries and the veins all attach to the base of the heart. The heart simultaneously pumps the pumps to the pulmonary and systemic circulations. 4 heart valves are required to permit one-way flow through the circulation. Atrioventricular (av) valves control blood flow between atria and ventricles. Cusp of left av (bicuspid) valve (or mitral valve)
