Aortic valve: pocket valve in the left heart The aortic valve acts as a valve between the left ventricle and the aorta. In terms of construction, it is a so-called pocket valve: it consists of three crescent-shaped “pockets”, the shape of which is reminiscent of a swallow’s nest. Due to their position and shape, they … Aortic valve – Structure and function
The endocardium is a smooth inner skin that covers the entire inner surface of the heart. All four heart valves are also part of the endocardium. Diseases of the inner lining of the heart and the heart valves often lead to heart failure. What is the endocardium? The endocardium is the thin layer of tissue … Endocardium: Structure, Function & Diseases
The systemic circulation is also called the great circulation. It carries blood through the majority of the body. The other major circulation of the body is the pulmonary circulation, which carries blood to and from the lungs. What is the circulatory system? The main function of the systemic circulation is to supply oxygenated blood to … Body Circulation: Function, Task & Diseases
Dipyridamole is the name given to an active substance from the group of platelet aggregation inhibitors. The drug is used primarily for the prophylaxis of strokes. What is dipyridamole? Dipyridamole is the name given to a drug belonging to the group of platelet aggregation inhibitors. The drug is used primarily for the prophylaxis of strokes. … Dipyridamole: Effects, Uses & Risks
Diastole is the relaxation phase of the heart muscle during which blood flows from the atria into the ventricles during the early filling phase when the leaflet valves are open. In the subsequent late filling phase, further blood is actively delivered to the ventricles by contraction of the atria. In the systole that follows, blood … Diastole: Function, Tasks, Role & Diseases
The brachiocephalic truncus is a right vascular branch of the aorta and supplies portions of the brain in addition to the neck and right arm. Like any artery, the truncus carries blood rich in oxygen, nutrients, and messengers. Vascular diseases such as arteriosclerosis can affect the brachiocephalic truncus and require surgical intervention. What is the … Truncus Brachiocephalicus: Structure, Function & Diseases
The truncus pulmonalis is a short arterial vessel that forms a common trunk connecting the right ventricle and the right and left pulmonary arteries into which the truncus pulmonalis branches. At the entrance to the artery is the pulmonary valve, which closes during the relaxation phase of the ventricles (diastole) to prevent backflow of blood … Truncus Pulmonalis: Structure, Function & Diseases
The cardiac septum separates the right side of the heart from the left side. A distinction can be made between a ventricular and an atrial septum. What is the cardiac septum? The cardiac septum is also known as the septum or cardiac septum in medical terminology. It separates the atrium and ventricle of the left … Cardiac Septum: Structure, Function & Diseases
Desmosine is a proteinogenic amino acid. Together with other amino acids, it forms the fiber and structural protein elastin. In mutations in the ELN gene, the structural formation of elastin is impaired. What is desmosine? Amino acids are an important component of the human organism. They are a class of organic compounds formed from at … Desmosine: Function & Diseases
The aortic valve is one of four heart valves or one of two so-called leaflet valves. It is located at the exit of the left ventricle into the aorta. The aortic valve opens during systolic contraction of the left ventricle and allows ejection of blood from the ventricle into the aorta, the beginning of the … Aortic Valve: Structure, Function & Diseases
Anatomy of the mitral valve The mitral valve or bicuspid valve is one of the four valves of the heart and is located between the left ventricle and the left atrium. The name mitral valve derives from its appearance. It resembles a bishop’s mitre and was therefore named after it. It belongs to the sail … Mitral valve
The tricuspid valve is one of the four valves of the heart. It forms the valve between the right atrium and right ventricle and prevents blood from flowing back into the right atrium during contraction of the ventricle (systole). During relaxation (diastole), the tricuspid valve is open, allowing blood to flow from the right atrium … Tricuspid Valve: Structure, Function & Diseases
