How is the human heart protected from shocks or injuries ?
A. 1) Heart is located between the two lungs protected by rib cage.
2) The human heart is covered by two layers.
3) These membranes are called pericardial membranes.
4) The space between the two layers is filled with pericardial fluid.
5) The pericardial fluid protects the heart from physical shocks or injuries.