Atrioventricular Endocardial Pillow

Atrioventricular endocardial cushions (AVEP) are anatomical structures located on the inner surface of the heart. They play an important role in regulating heart rate and contractile function of the heart.

Atrioventricular endocardial torso (AVET) is one of the most common types of AVEP. It is located between the right atrium (RA) and right ventricle (RV) of the heart. AVET is a fibrous structure that connects the endocardial surface to the myocardium.

AVET plays an important role in regulating heart rhythm. During systole, the AVET contracts and increases the volume of blood flowing from the RA to the RV. This helps increase the pressure in the RV and speeds up its contraction. During diastole, the AVET relaxes and allows blood to flow freely from the RV into the lungs.

In addition, AVET also plays a role in myocardial contractile function. AVET fibers can be sensitive to various chemicals such as hormones and neurotransmitters. When the concentration of these substances in the blood changes, AVET can change its structure and function, which can affect the force of myocardial contraction.

Thus, AVEPs play an important role in the normal functioning of the heart and the regulation of its function. Understanding their anatomical structure and function can help in understanding the causes and treatment of various heart diseases.



The atrioventricular endocardial cushion (AVEP) is an anatomical structure that is located between the atria and ventricles of the heart. It plays an important role in maintaining normal heart rhythm and preventing the formation of blood clots.

The AVEP consists of endocardial folds that form a chamber within the heart. This chamber is filled with blood and acts as a buffer between the atrium and ventricle. When the atrium contracts, AVEP helps keep blood inside the chamber and prevent it from being thrown back into the atrium.

One of the main functions of AVEP is the regulation of heart rate. When the ventricle contracts, AVEP prevents blood from being thrown into the atrium, which helps maintain a normal heart rhythm. In addition, AVEP also plays a role in preventing blood clots from forming in the heart.

Typically, AVEP does not cause any symptoms and does not require treatment. However, if AVEP is damaged or missing, it can lead to various heart diseases such as arrhythmia and heart failure. In this case, surgery may be required to repair the AVEP or replace it with an artificial construct.

In conclusion, AVEP plays an important role in the normal functioning of the heart. Its presence and function are key to maintaining heart health and preventing heart disease.