That sounds familiar. However, I'm not a medical doctor but I do suggest that you go to the library and ask for the notebooks on the latest medical articles.
It is a notebook, in alphabetical order that lists all the medical problems in the world, in an updated manner. When there is a new malady or a new treatment for an old problem, the medical association prints the results and sends copies to all the libraries in the country. At least that's what I was told. Look up your question, starting with atrium then go on to ventricle. You might look for HOCM, Hypertrophic obstructive cardiomyopathy, which used to be called IHSS.
Ask the librian to help you.
Go quickly!
The improper closure of the valve between the atrium and ventricle during systole results in a condition called mitral valve prolapse. This can lead to blood leaking back into the atrium when the heart contracts, causing symptoms such as heart murmurs, fatigue, and shortness of breath. In severe cases, it may require treatment such as medication or surgery to prevent complications.
Systole and diastole most often refer to the ventricle of the heart. Systole is contraction of the ventricle, and diastole is the relaxation of the ventricle.
Atrial systole -- The atrium contracts, then the ventricle.
During systole
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).
Systole
Your answer is EDS - End Diastole Volume Keep in mind, there is a period of isovolumic contraction which is the first part of systole and during that phase no blood is actually ejected because the pressure in the ventricle hasn't exceeded the pressure in the aorta (I'm assuming we're talking about the left ventricle)
The right ventricle empties into the pulmonary arteries and the left ventricle empties into the aorta.
When the smaller, upper atria chambers contract in the first phase of systole, they send blood down to the larger, lower ventricle chambers.
The quiescent period of the heart is after the ventricle has completed isovolumetric relaxation (or early diastole). In other words, it is after ventricle systole (when the ventricle has completed contraction). During the quiescent period the ventricles are relaxed and begin to fill up with blood. Interestingly, when considering the time of each event (atrial systole, ventricular systole) most of the cardiac cycle has the heart in this relaxation/ quiescent period.
s1. It is due to the closure of the AV valves at the start of systole
Mid-to-late diastole, ventricular systole and early diastole