how many ribs that covering the heart
it doesnt sit in anything but it has a covering around it known as the epicardium...and the heart is located beneath the rib cage and partially behind the left lung
The heart does not have a serosal layer covering over most of it. Instead, the heart is surrounded by a tough fibrous pericardium.
coronary sinus
dffhdfjkmdjgd
The pericardium is the layer of the heart formed by a single sheet of squamous epithelial cells covering connective tissue. It acts as a protective membrane around the heart and prevents friction as the heart beats.
parietal pericardium
dffhdfjkmdjgd
ahfdlhsadf;oaislkasdhf;aoisdfha;osdifha;sdkfhas
cell membrane
yes it's called the visceral pericardium
parietal layer