To keep the heart beating, the cells need a constant supply of fuel and oxygen. This is delivered by the coronary blood supply – the heart’s own network of blood vessels, which penetrate the heart’s walls to reach the muscle.
Healthy heart
Than angiogram is an intricate network of blood vessels branching off the main arteries.
Tight-squeeze
The heart sits in the chest, surrounded by the ribcage and between the two lungs, which take up most of the rest of the space in the chest cavity.
Heart rate
The heart rate is the number of beats per minute (bpm) that the heart makes. A person’s average heart rate varies according to different factors, such as age, gender, and level of fitness.
Picture Credit : Google