How the HUMAN HEART works in short #shorts
Channel: Body Dynamics + Health & Fitness Tips
Date: 2022-12-22

the human heart is situated just slightly to the left of the sternum in the middle of the chest. according to the Texas Heart Institute it is enclosed in a double-walled sack called the pericardium and is located between your lungs the pericardium holds the heart in place inside the chest and protects it between the outer layer the parietal pericardium and the inner layer the serous pericardium pericardial fluid serves as a lubricant when the heart contracts and the lungs and diaphragm move the fluid lubricates the heart the circulatory system is a network of blood vessels that the heart uses to pump blood while it beats blood travels through