Question

ventricular pressure is higher than the atrial pressure in all phases of the cardiac cycle except in

Answer 1

Ventricular pressure is higher than the atrial pressure in all phases of the cardiac cycle except in atria contraction.

Cardiac cycle is the term used to describe a complete heartbeat of a mammalian heart, which typically consists of sequential alternating contraction and relaxation of the atria and ventricles. This action results in oxygenated blood flowing unidirectionally (in one direction) throughout the human body.

• There are typically two stages to the cardiac cycle;
• The ventricles are relaxed and filled with oxygenated blood during diastole.

Systole: During this stage, the muscles contract, causing oxygenated blood to be forced into the atria.

When the atrium contracts, ventricular pressure, which is produced when the cardiac cycle occurs, is normally higher than atria pressure.

Learn more about cardiac cycle

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