Question

ventricular systole coincides with

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Answer 1

Answer:

With....

The first heart sound coincides with contraction of the ventricles, thus identifying the onset of ventricular systole and the end of mechanical diastole.

Answer 2

Ventricular systole coincides with Atrioventricular diastole (both relaxed)

Explanation:

• The heart is a powerful muscular pumping organ that circulates blood from the heart to the body.
• When the ventricular begins to contract, this is referred to as ventricular systole or the phase of ventricular contraction.
• The impulse from the SA node is transferred to the AV node, which then sends it to the Purkinje fibre and his bundle office, which starts the contraction in the event that the pressure starts or increases in the ventricle, with the tricuspid and bicuspid valves closing to prevent backflow of blood.
• As these walls close, a sound will be heard, which will be the sound of its lub.
• Ventricles enter the relaxation phase after the systolic phase. As ventricular relaxation begins, the semilunar walls close, preventing backflow of blood from the pulmonary aorta and aortic arch.
• This results in a sound known as dub, which is the first sound produced at the time of the call.
• The first occurs when the wall is lost, and the second occurs when the wall is closed, i.e. when semilunar valves are closed.