The heart wall is richly supplied with blood vessels, and it is composed of three layers: the epicardium, the myocardium, and the endocardium.
First layer--Epicardium is the visceral layer of the serous pericardium. It is often infiltrated with fat, especially in older people.
Middle layer--Myocardium ("muscle heart") is composed mainly of cardiac muscle and forms the bulk of the heart. It is the layer that contracts.
Third layer--Endocardium ("inside the heart") is a glistening white sheet of endothelium (squamous epithelium) resting on a thin connective tissue layer. Located on the innermyocarial surface, it lines the heart chambers and covers the fibrous skeleton of the valves. Endocardium is continuous with the endothelial linings of the blood vessels leaving and entering the heart.
Three layers of tissue form the heart wall. The outer layer of the heart wall is the epicardium, the middle layer is the myocardium, and the inner layer is the endocardium.
The myocardium. The middle muscular layer.
3. one of them is definitetly elastin. i dont know the other two, but im fairly certain there are 3
endocardium, myocardium, epicardium, and pericardial sac
The heart has quadrants - 2 atriums at the top half and 2 ventricles at the bottom half.
myocardium
myocardium
myocardium
The His-Purkinje system is the part of the heart's electrical system that follows the outer walls of the ventricle.
Cardiac muscle forms the muscular wall of the heart. Cardiac muscle is involuntary muscle.
ANP
Because it have a pressure it must pump the blood and carry it away from the heart
The heart pumps the blood out in high pressure so the artery walls are strong and elastic,the walls are thick and contains thick layers of muscle to make them strong , and elastic fibres to allow them to stretch and spring back
The human heart has 4 sides.
elastic tissue
The heart is composed of cardiac muscle.
CHAMBERS?
cardiac
Behind Mansion Walls - 2011 A Bankrupt Heart was released on: USA: July 2013
The His-Purkinje system is the part of the heart's electrical system that follows the outer walls of the ventricle.
If you dig underground and dig in the walls you can get heart scales.
Smooth
In the heart.
cardiac
coronary sinus