The electrical impulse travels through the atrium and reaches the atrioventricular node (AV node), which is the normal connection to the ventricles, the bottom chambers of the heart that pump blood to ...

The mitral valve is positioned between the heart’s left atrium and ventricle. It opens to allow blood to flow into the left ventricle and closes to prevent backflow into the left atrium.

The left-hand side pumps oxygenated blood around the body. Each side of the heart consists of an atrium and a ventricle which are two connected chambers. The atria (plural of atrium) are where the ...

A healthy adult heart is roughly the size of a clenched ... are called the left and right atrium. The right atrium and right ventricle work together to receive the blood that has just traveled ...

Researchers have identified in a new study published in BMJ Open Heart journal that ventricular arrhythmias during stress ...

Atrial fibrillation is the most common chronic arrhythmia. It is characterized by erratic atrial electrical activity with atrial rates of 400 to 600 beats per minute. The P wave is absent on the ...

Findings of congestive heart failure may be present depending on the ventricular rate, duration of atrial flutter and other factors. There will never be a S4 heart sound present during atrial ...