THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -During ventricular systole the ventricles are contracting and vigorously pulsing (or ejecting) two separated blood supplies from the heart-one to the lungs and one to all other body organs and systems-while the two atria are relaxed (atrial diastole).

Detailed explanation-2: -Systole is the contraction phase of the heartbeat. During this phase, the right and left ventricles contract to pump blood to the lungs and body. Blood pressure measures pressure during both ventricular contraction (systolic pressure) and during relaxation (diastolic pressure).

Detailed explanation-3: -Systole is the period when the heart chambers contract that causes the ejection of blood into the aorta and pulmonary trunk.

Detailed explanation-4: -Every single heartbeat includes three major stages: atrial systole, ventricular systole, and complete cardiac diastole. Atrial systole is the contraction of the atria that causes ventricular filling.