Diseases The inflammation of the inner skin of the heart is called endocarditis. Untreated, this disease is usually fatal, but nowadays it is easily treatable with antibiotics. Other diseases are Löffler’s endocarditis and endomyocardial fibrosis. Diagnostics Echocardiography is used to visualize the endocardium. This allows the heart valves in particular to be examined very well. … Diseases | Endocardium
Definition The coronary arteries, also called coronary arteries, are vessels that supply the heart with blood. They run in a ring around the heart and were named after their arrangement. Anatomy The coronary vessels rise above the aorta, called the aorta, about 1-2 cm above the aortic valve. In total, two branches emerge from it, … Coronary arteries
Function The coronary arteries are responsible for the blood supply. The heart is a hollow muscle that pumps blood but is not supplied by it. Like any other muscle, it needs oxygen and nutrients to work. This is provided by the coronary arteries, which supply the entire heart due to their coronary arrangement. Pathology There … Function | Coronary arteries
Veins Veins, which usually run near the arteries, are also part of the heart‘s supply. Their task is to collect the blood again and to lead it to the right atrium. The three largest branches are called veins: Vena cardia media running with the ramus ventricularis posterior Vena cardiaca parva, which runs with the right … Veins | Coronary arteries
Synonym Atrium dextrumThe right atrium is one of the four inner chambers of the heart, which is connected to the large circulation. In it, blood flows in through the vena cava and is passed on to the right ventricle. Anatomy The right atrium is spherical and has the right auricle on the front. The heart … Right atrium
Histology – Wall layers Like the other internal spaces of the heart, the wall of the right atrium consists of three layers: Endocardium:The endocardium forms the innermost layer and consists of a single-layer endothelium. The function of the endocardium is to improve the flow properties of the blood. Myocardium:The myocardium is the actual heart muscle … Histology – Wall layers | Right atrium
Anatomy The AV node, like the sinus node, is located in the right atrium. However, it lies further down, more precisely at the transition to the right ventricle and thus in Koch’s triangle. Just like the sinus node, the AV node does not consist of nerve cells, but of specialized heart muscle cells that have … AV node
The tricuspid valve belongs to the four valves of the heart and is located between the right ventricle and the right atrium. It belongs to the sail valves and consists of three sails (cuspis = sails). The tricuspid valve is located in the right ventricle and is attached to the papillary muscles with so-called tendon … Tricuspid valve
Introduction The heart plays a central role in the human cardiovascular system because it is the motor of the circulatory system. The blood from the body’s circulatory system first reaches the right half of the heart. From there the blood is pumped into the lungs, where it is supplied with oxygen. From the pulmonary circulation … Task of the heart
Tasks of the atria In the atria, the heart collects the blood from the preceding circulatory segments. Through the upper and lower vena cava, the blood from the body’s circulation reaches the right atrium. From there it is pumped through the tricuspid valve into the right ventricle. The atrium itself has hardly any pumping function. … Tasks of the atria | Task of the heart
Task of the heart valves The heart has four heart valves, whereby one differentiates between pocket and sail valves. The two sail valves separate the atria of the heart from the ventricles. The so-called tricuspid valve lies between the right atrium and the right ventricle, the mitral valve forms the border between the left atrium … Task of the heart valves | Task of the heart
Task of the pacemaker A pacemaker is needed when the heart is no longer able to beat regularly on its own. This can have various causes. For example, the sinus node, the heart‘s own pacemaker, no longer works reliably or there are problems in the conduction system. In both cases the pacemaker can take over … Task of the pacemaker | Task of the heart
