Yes, it is.
The pericardial sac is lined with a double-layered membrane called the serous pericardium. The inner layer is the visceral pericardium (or epicardium) which is in contact with the heart, and the outer layer is the parietal pericardium which is attached to the surrounding structures.
serous pericardium
Peri 'cardial or Pericardium, is the membranous sac enclosing the heart.
The pericardial sac contains the heart and pericardial fluid which serves to protect the heart. The fluid is secreted by the serous visceral pericardium and is similar to the cerebral spinal fluid that cushions the brain.
The pericardial sac is filled with pericardial fluid, a clear fluid that acts as a lubricant between the layers of the pericardium to allow the heart to move smoothly during contractions.
The space between the epicardium and the parietal pericardium is called the pericardial cavity. This cavity contains a small amount of pericardial fluid that acts as a lubricant to reduce friction between the membranes during heart contractions.
The pericardial sac (or pericardium) is a dual-walled sac that contains the heart and the roots of the great vessels (vena cavae, pulmonary arteries, pulmonary veins, aorta, brachiocephalic arteries and veins, carotid artery and subclavian artery).
Pericardial means pertaining to the pericardium, the sac around the heart.
fibrous pericardium (tough, dense Connective tissue), parietal pericardium (pericardial cavity) , visceral pericardium (pericardial cavity)
Yes. He needs to cut through both the layers of pericardium.
Water around the heart is also called a pericardial effusion. The pericardium is a sac that surrounds the heart. If this sac fills with fluid, a pericardial effusion, then the ability of the heart to contract normally is compromised.