Systolic blood pressure is exerted by the blood against the walls of the artery during which of the following phases?

Correct option is A

Sol: The correct answer is (a) Ventricular contraction.

Key Points:

​Systolic blood pressure is the pressure exerted by the blood against the walls of the arteries during the contraction of the ventricles, which is known as ventricular systole. This is when the heart pumps blood out into the arteries.

Information booster:

Phases of the Heartbeat:

Ventricular Contraction (Systole):

Ventricular Systole is the phase when the ventricles (the two lower chambers of the heart) contract.

This contraction pumps blood out of the ventricles into the arteries:

• The right ventricle sends blood into the pulmonary artery, leading to the lungs.

• The left ventricle sends blood into the aorta, leading to the rest of the body.

The force of the blood being pumped into the arteries during this contraction creates the systolic pressure, which is the higher of the two blood pressure readings (the top number in a blood pressure reading).

​Ventricular Relaxation (Diastole):

• Ventricular Diastole is the phase when the ventricles relax after contraction.

• Blood fills the ventricles during this phase, getting ready for the next contraction.

• The pressure in the arteries during this relaxation phase is the diastolic pressure (the lower number in a blood pressure reading).

A typical blood pressure reading might be 120/80 mmHg:

• 120 represents the systolic pressure (pressure during ventricular contraction).

• 80 represents the diastolic pressure (pressure during ventricular relaxation).