WebThe heart contains valves to prevent the blood flowing backwards: the right side has a tricuspid valve (a valve with three flaps) the left side has a bicuspid valve (a valve with … WebThe heart has four chambers - two atria and two ventricles. Note that left and right refers to the side in the person's body, not how it is viewed on the page. Blood enters the heart …

Explain why a person with a leaking heart valve has difficulty ...

WebThere are four valves in your heart, they are: the tricuspid valve and the pulmonary valve on the right side of the heart the mitral valve and the aortic valve on the left side of your … WebBlood is pumped around the body by the heart. The heart has four chambers - two atria and two ventricles. Note that left and right refers to the side in the person's body, not how it is … fairplay school district

The heart - How do substances get into, out of and around our …

WebValves in the heart: Open when the pressure of blood behind them is greater than the pressure in front of them Close when the pressure of blood in front of them is greater than the pressure behind them Valves are important for keeping blood flowing forward in the right direction and stopping it flowing backwards. WebThe cardiac conduction system (CCS) (also called the electrical conduction system of the heart) transmits the signals generated by the sinoatrial node – the heart's pacemaker, to cause the heart muscle to contract, and pump blood through the body's circulatory system.The pacemaking signal travels through the right atrium to the atrioventricular … WebIn this Higher Human Biology revision guide, you will learn in detail that cardiac output is a measure of the rate of blood flow through the heart and its associated blood vessels. You can also revise the blood vessels leading into and out of the heart, the cardiac conduction system, and autonomic and hormonal control. fairplay rv park