Myocardium
The muscular wall of the heart. It contracts to pump blood out of the heart and then relaxes as the heart refills with returning blood.
Anatomy
Mitral Valve
The mitral valve is the valve located at the junction between the left atrium and the left ventricle. It is a bicuspid valve (having two leaflets, or cusps) that opens during diastole to allow oxygenated blood to flow from the left atrium into the left ventricle, and closes during systole to prevent blood from flowing … Read more
Lung
The lungs are a pair of spongy, air-filled organs of respiration situated in the chest cavity on either side of the heart, enclosed by a thin membrane called the pleura. The right lung has three lobes and the left lung has two (the left being slightly smaller to accommodate the heart). Their primary function is … Read more