1
This structure forms two thin layers called the visceral layer which lies directly on the outer surface of the heart wall and the and the parietal layer which lies directly on the deep surface of the fibrous pericardium. This structure functions to reduce friction as the heart beats, allowing the visceral and parietal layers to slide over each other.
2
The superficial layer of this structure is composed of dense irregular connective tissue. This structure is attached below to the diaphragm and above to the great vessels of the heart, which helps to anchor the heart within the chest cavity. It functions to limit the motion of the heart.
3
This valve lies in between the right ventricle and the pulmonary trunk and is a semilunar valve with three crescent-shaped cusps and it functions to open to allow blood to be pumped from the right ventricle to the lungs where it will receive oxygen and prevents the backflow of blood from the pulmonary artery to the right ventricle.
4
The thickest wall chamber that is cone-shaped and forms most of the back and lower surface of the heart and functions to pump oxygenated blood to the entire body through the aortic valve via the aorta.
5
A small thin walled chamber that receives deoxygenated blood from the entire body via the superior and inferior vena cava and functions to pump deoxygenated blood from the tricuspid valve into the right ventricle.
6
This structure is made up of two serous membrane layers, each composed of an epithelial lining with an underlying connective tissue. It also keeps the heart in place, limits its motion, and prevents it from over expanding
7
This valve lies in between the left ventricle and the aorta and is a semilunar valve with three crescent-shaped cusps and functions to open to allow blood to leave the heart from the left ventricle through the aorta and the body and prevents the backflow of blood from the aorta to the left ventricle.
8
This valve lies in between the right atrium and right ventricle and it functions to prevent the backflow of blood from the right ventricle into the right atrium during ventricular systole.
9
This valve lies in between the left atrium and left ventricle and it functions to prevent the backflow of blood from the left ventricle back into the left atrium during ventricular systole.
10
This organ is composed of two strong muscular pumps, which are connected by two complementary sets of arteries: one for the systemic and one for pulmonary circulation. The muscular walls are made of specialized cardiac muscle cells that carry their own intrinsic contractile rhythm.
