0
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.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoThree 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.
Wiki User
∙ 15y agoThe myocardium. The middle muscular layer.
Wiki User
∙ 13y ago3. one of them is definitetly elastin. i dont know the other two, but im fairly certain there are 3
Wiki User
∙ 11y agoendocardium, myocardium, epicardium, and pericardial sac
Wiki User
∙ 11y agoThe heart has quadrants - 2 atriums at the top half and 2 ventricles at the bottom half.
Wiki User
∙ 14y agomyocardium
Wiki User
∙ 13y agomyocardium
Wiki User
∙ 13y agomyocardium
Add your answer:
Earn +20 pts
What is a continuation of the electrical system of the heart that follows the outer walls of the ventricle?
The His-Purkinje system is the part of the heart's electrical system that follows the outer walls of the ventricle.
What type of muscle is found only in the walls of the heart?
Cardiac muscle forms the muscular wall of the heart. Cardiac muscle is involuntary muscle.
Which hormone is released by cardiac muscle in response to abnormal stretching of the heart walls?
ANP
Why do arteries need strong walls?
Because it have a pressure it must pump the blood and carry it away from the heart
How have arteries adapted to carry blood 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
How many walls does the human heart have?
The human heart has 4 sides.
What type of tissue is found in the walls of the arteries that leave the heart but not in the walls of the large veins that enter the heart?
elastic tissue
What muscle are heart walls composed to?
The heart is composed of cardiac muscle.
What are the walls that divide the heart called?
CHAMBERS?
What muscle are heart walls composed of?
cardiac
What are the release dates for Behind Mansion Walls - 2011 A Bankrupt Heart?
Behind Mansion Walls - 2011 A Bankrupt Heart was released on: USA: July 2013
What is a continuation of the electrical system of the heart that follows the outer walls of the ventricle?
The His-Purkinje system is the part of the heart's electrical system that follows the outer walls of the ventricle.
Heart scales in Pokemon Diamond?
If you dig underground and dig in the walls you can get heart scales.
What type of tissue is found in the walls of the arteries that leave the heart but not enter the heart?
Smooth
What are cardiac muscles where are they found?
In the heart.
What muscles make up the walls of the heart?
cardiac
Which is not a covering of the chamber walls of the heart?
coronary sinus
