It is called systole. This is when the ventricles contract and eject blood into the lungs (from the right ventricle) or into the systemic circulation (from left ventricle).
That phase is called as isovolumetric contraction phase.
The QRS complex on an ECG indicates ventricular excitation and contraction. It represents depolarization of the ventricles as they prepare to contract and pump blood out to the rest of the body.
the valves close
The contraction phase of the cardiac cycle is called systole. This is when the heart muscle contracts to pump blood out of the heart and into the circulatory system.
The ventricular ejection phase is after the isovolumetric contraction phase. The ventricular ejection phase of the cardiac cycle is when the pressure in the ventricle becomes higher than the pressure in the aorta or pulmonary trunk (depending on which ventricle we are looking at). The high pressure in the ventricle will cause blood to be ejected from the ventricle into the aorta or pulmonary trunk. This is because blood moves from higher to lower pressure. Another way to consider the high pressure concept, is to picture the blood having a high kinetic energy (bouncing on the walls of the ventricle) and the blood molecules want to decrease their kinetic energy by moving to a less crowded area (such as the aorta or pulmonary trunk). Also, after the ventricular ejection phase, the blood will attempt to move back into the ventricle from the aorta or pulmonary trunk. This is inhibited by a semilunar valve closing (which is the dub sound in the common heartbeat sound, lub dub).
I believe that is called diastole, in contrast to systole, the contraction of the heart muscles.
That phase is called as isovolumetric contraction phase.
The R wave of the ECG is most closely associated with the depolarization of the ventricles during the cardiac contraction cycle, specifically with the QRS complex. This represents the initiation of ventricular contraction.
the ventricular contraction wave is larger
The QRS complex on an ECG indicates ventricular excitation and contraction. It represents depolarization of the ventricles as they prepare to contract and pump blood out to the rest of the body.
The ventricular contraction period, also known as systole, typically lasts about 0.3 seconds in a healthy adult heart. This is the phase when the ventricles contract to pump blood out of the heart.
The ventricular contraction period refers to the phase of the cardiac cycle when the ventricles of the heart are contracting to pump blood out to the lungs and the rest of the body. This stage is also known as systole. It is an essential part of the overall heart function in maintaining blood circulation throughout the body.
The normal time of ventricular contraction depends on the heart rate. The QT segment represents the ventricular contraction on an ECG exam. The corrected QT segment is 0.45 seconds for men and 0.46 seconds for women.
It is a defective ventricular contraction.
Similarly, a period of recession occurs at the start of the contraction phase.
The wave for ventricular contraction is larger than the wave for atrial contraction. This is because the ventricles have thicker muscle walls and contract more forcefully in order to pump blood out to the body.
It is called Systole.