Angina is the most common presenting symptom of coronary artery disease, occurring in 80% of the elderly. It is a clinical syndrome of chest pain due to an imbalance between the oxygen supply and...
Cardiac muscle is also called myocardium, in vertebrates, one of three major muscle types, found only in the heart. It is similar to skeletal muscle, it possesses contractile units known as sarcomeres; this feature,...
The heart keeps the blood moving throughout the body. Blood carries nutrients and oxygen throughout the body, it collects waste products and returns them to the liver and kidney for further processing and excretion,...