The pressure in the arteries when the ventricles are contracting is known as:

• A. Systolic Pressure
• B. Diastolic Pressure
• C. Venous Pressure
• D. Right Atrial Pressure

Answer: (A)

During each heartbeat, the ventricles contract and push blood into the arteries, causing the arterial pressure to rise to a peak. This peak pressure is called systolic pressure. It reflects how hard the heart is pumping and the condition of the arteries. After the heart relaxes, the pressure falls to a lower level called diastolic pressure. Venous pressure refers to the pressure in the veins, and right atrial pressure is the pressure in the right atrium, not the arteries.