What is a endocardium in anatomy?

Definition and Function of Endocardium The endocardium is a thin, smooth tissue that makes up the lining of the chambers and valves of the heart. Let’s take a quick look at the anatomy and function of endocardium, as well as its association with health problems.

What is the difference between endocardium and endocardium?

The outer layer of the heart is termed epicardium and the heart is surrounded by a small amount of fluid enclosed by a fibrous sac called the pericardium….

What is the difference between endocardium and epicardium?

The heart wall is divided into three layers: epicardium, myocardium, and endocardium. Epicardium: the outer protective layer of the heart. Myocardium: muscular middle layer wall of the heart. Endocardium: the inner layer of the heart.

What is epicardial and endocardial?

This combination therapy is a planned, staged approach using the best of the surgical- and catheter-based approach. This procedure involves both Epicardial (surgical) and Endocardial (catheter) ablation. (Ablation treats irregular heartbeat by creating scar tissue in the area of the heart that is causing the problem.)

Does epicardium or endocardium depolarize first?

The epicardium repolarized earlier by 33.2+10.0 ms than the endocardium. The IVRT, which is an index of early ventricular relaxation efficacy, was 49.2+19.1 ms (n ¼ 5).

Does endocardium contain collagen?

The thick elastic layer constitutes the bulk of the endocardium. In addition to collagen fibers and some smooth muscle cells, this layer contains prominent elastic fibers that progressively increase in size from the endothelium to the area adjacent to the myocardium.

What is an epicardial approach?

The percutaneous epicardial approach has also been utilized for cardiac pacing and drug delivery. But still, its most common usage is for the treatment of intramural and subepicardial substrates that give rise to ventricular tachycardia, particularly in patients with nonischemic cardiomyopathy.

What are the heart layers?

The wall of the heart separates into the following layers: epicardium, myocardium, and endocardium. These three layers of the heart are embryologically equivalent to the three layers of blood vessels: tunica adventitia, tunica media, and tunica intima, respectively.

What is a ventricle heart?

Heart ventricle: One of the two lower chambers of the heart. The right ventricle receives blood from the right atrium and pumps it into the lungs via the pulmonary artery, and the left ventricle receives blood from the left atrium and pumps it into the circulation system via the aorta.

What is another name for epicardium?

visceral pericardium
The inner part of the pericardium that closely envelops the heart is, as stated, the epicardium; it is also called the visceral pericardium.

What does the P wave stand for?

electrical depolarization
The P wave represents the electrical depolarization of the atria. In a healthy person, this originates at the sinoatrial node (SA node) and disperses into both left and right atria.

What does endocardium mean in medical dictionary?

Endocardium: The lining of the interior surface of the heart chambers. The endocardium consists of a layer of endothelial cells and an underlying layer of connective ’tissue.

Which describes the endocardium?

The endocardium is the inner layer of the heart that connects with the myocardium and lines the atria and ventricles. Ad. Humans have four chambers in their hearts: the right ventricle and the left ventricle in the bottom two quadrants of the heart, and the right atrium and left atrium in the top two quadrants of the heart.

What is the suffix for endocardium?

The suffix “-ium” comes from Greek and means “small” (Ref: Dictionary of Word Roots and Combining Forms , D.J. Borror). The literal translation of “endocardium” would then be something like, “small stuff on the interior of the heart.”. This book lists no suffix “-um”…

What is the structure of endocardium?

Endocardium is a continuous shell, filling any irregularities in the structure of the myocardium, covering the heart chambers and valves, posterior medial and anterolateral papillary muscles, tendon filaments.