Question

Write the two functions of pericardial fluid.

Answer 1

Pericardium is a sac-like structure surrounding the heart. It consists of two layers. The outer layer is fibrous and is called as parietal pericardium. The inner layer is known as visceral pericardium and secretes a fluid called pericardial fluid.

Functions of pericardial fluid are-

1) The fluid minimizes the friction generated between the membrane during the process of contraction and relaxation of the heart.

2) It also absorbs the shock to protect the heart from mechanical injury.