The sac surrounding the heart is called the pericardium. The pericardium has two layers with fluid between them, and it serves to protect and anchor the heart.
pericardium
nut sack
The tissue forming a loosely fitting "sack" around the heart is known as the pericardium. The musculature of the heart itself, consisting of "cardiac" muscle fibers, is, in general, referred to as the myocardium.
The pericardium is a sack that surrounds the heart and humans have them. They can be removed, if they are diseased.
bone infection, infections of the sack around the heart
That you're not pregnant
The sac is called the pericardial sac. The snake's heart can move 1 to 1 1/2 inches because of this sac.
buy her a sack of potatoes and invite her to a Jewish barmitzva...that will win her heart for sure
It's not unheard of for Lung Cancer to spread locally to structures nearby such as the heart. It would make it's way in from the outside so getting to the Heart (or Pericardial) Sack first
Ball sack ball sack ball sack
a sack of a quarterback behind the line of scrimage, that is a sack
a gunny sack is a sack made of gunny or burlap