What is systole and diastole phase?

What is systole and diastole phase?

Summary. Diastole and systole are two phases of the cardiac cycle. They occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body. Systole occurs when the heart contracts to pump blood out, and diastole occurs when the heart relaxes after contraction.

What's the difference between diastolic and systolic?

Sheps, M.D. Blood pressure readings are given in two numbers. The top number is the maximum pressure the heart exerts while beating (systolic pressure). The bottom number is the amount of pressure in the arteries between beats (diastolic pressure).

Why is it called systole?

"Systolic" comes from the Greek systole meaning "a drawing together or a contraction." The term has been in use since the 16th century to denote the contraction of the heart muscle.

What does systole mean in biology?

Systole: The time period when the heart is contracting. The period specifically during which the left ventricle of the heart contracts.

What is diastole of the heart?

diastole, in the cardiac cycle, period of relaxation of the heart muscle, accompanied by the filling of the chambers with blood. Diastole is followed in the cardiac cycle by a period of contraction, or systole (q.v.), of the heart muscle.

What is diastole in cardiac cycle?

Cardiac diastole is the period of the cardiac cycle when, after contraction, the heart relaxes and expands while refilling with blood returning from the circulatory system.

What is widened pulse pressure?

A wide pulse pressure — sometimes called a high pulse pressure because the number is greater — means there's a wide difference between the top and bottom numbers. For individuals who aren't physically active, wider pulse pressures can indicate serious problems either now or in the future.

Is 120 systolic normal?

Here's how to understand your systolic blood pressure number: Normal: Below 120. Elevated: 120-129. Stage 1 high blood pressure (also called hypertension): 130-139.

Which side of the heart is systolic?

The left ventricle fills with oxygenated blood between heartbeats, then pumps the blood around the body during a heartbeat, also known as systole. If the left ventricle cannot fully relax, it cannot hold the amount of blood that the body needs.

What's the DIA in blood pressure?

Diastolic blood pressure, the bottom number, measures the force your heart exerts on the walls of your arteries in between beats.