The sinoatrial node is the electrical pacemaker of the heart, responsible for the generation of excitation or heart rate. A pacemaker cell can discharge itself, so the heart rhythm is dictated by it. A malfunction of the sinus node slows the heartbeat, in which case a pacemaker can take over. What is the sinus node? … Sinus Node: Structure, Function & Diseases
Definition The sinus node (also: sinuatrial node, SA node) is the primary electrical pacemaker of the heart and is largely responsible for heart rate and excitation. Function of the sinus node The heart is a muscle that pumps on its own, which means it is not dependent on nerves like most muscles. This is because … Sinus node
Sinus node defect If the sinus node fails as the primary pacemaker and stimulation center of the heart, a secondary pacemaker must step in for it (sick sinus syndrome). This is called the atrioventricular node (AV node) and can take over the function of the sinus node to a certain extent. It generates a rhythm … Sinus node defect | Sinus node
Tripping of the heart, heart failure, palpitations, palpitations, palpitations, Swindle Fear Nervousness or Faint (syncope) come. 2. ventricular extrasystoles (VES, ventricular extrasystoles) In ventricular extrasystole, the extrasystole develops in the tissue of the heart chambers. It is also known that these additional heartbeats are produced in the ectopic tissue. (Ectopic means that normally no electrical … Extrasystole
LOWN Classification Simple VES Grade I: Monomorphic VES under 30 times per hourGrade II: Monomorphic VES over 30 times per hour Grade I: Monomorphic VES under 30 times per hour Grade II: Monomorphic VES over 30 times per hour Complex VES Degree III: Polymorphic VES Degree IVa: Trigeminus/Couplets Degree IVb: Salvos Degree V: “R-on-T Phenomenon … LOWN Classification | Extrasystole
Extrasystole after sport In many cases, the exact temporal correlation of the occurrence of an extrasystole can already help to narrow down its possible causes. For example, a pronounced lack of sleep, or severe overtiredness, can lead to the development of an extrasystole even in an actually completely healthy person. Another particularly frequent cause of … Extrasystole after sport | Extrasystole
Relationship with magnesium Together with calcium and potassium, magnesium regulates the electrical excitability of the muscle cells and thus also influences the processes in the heart muscle. A blood magnesium level in the normal range of 0.75-1.05mmol/l prevents excessive electrical excitability and thus contributes to the electrical stability of the heart muscle cells, thus a … Relationship with magnesium | Extrasystole
Definition A heart stumble is a clearly perceptible heartbeat that is not in time with the normal pulse. This phenomenon is based on so-called extrasystoles, i.e. excitation of the ventricle, which are accompanied by additional contractions of the heart muscles. A heart stumble that occurs only occasionally and lasts only a few heartbeats is not … Heart stumbling – How dangerous is that?
Treatment The treatment depends on the cause and extent of the heart stumble. If the stuttering has occurred in a healthy heart, there is usually no need for treatment as long as it is not accompanied by other symptoms indicating a more severe heart disease and it does not exceed a certain frequency.However, if the … Treatment | Heart stumbling – How dangerous is that?
Potassium and heart stumbling In our body there is a delicate electrolyte balance. Electrolytes are the individual, charged particles, such as sodium, magnesium or potassium. A lack or surplus of electrolytes can have effects on the entire organism. For example, a potassium deficiency (hypokalemia) can often be accompanied by cardiac extrasystoles, better known as heart … Potassium and heart stumbling | Heart stumbling – How dangerous is that?
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
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
