Systolic

Systolic

Systolic (pronunciation: sis-TOL-ik) refers to the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries. This term is most commonly used in the context of blood pressure, where it denotes the maximum arterial pressure during contraction of the left ventricle of the heart.

Etymology

The term 'systolic' is derived from the Greek word 'systole', which means 'a drawing together or a contraction'.

Related Terms

• Diastolic: This term refers to the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood. It is the minimum arterial pressure during relaxation and dilation of the ventricles of the heart.
• Blood Pressure: This is the pressure of circulating blood against the walls of blood vessels. It is usually measured in terms of the systolic (maximum) pressure over diastolic (minimum) pressure and is expressed in millimeters of mercury (mmHg).
• Hypertension: This is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. High blood pressure usually does not cause symptoms.
• Hypotension: This is a condition where blood pressure is lower than normal. In severe or prolonged cases, it can be a serious health concern.

See Also

• Cardiology
• Heart Rate
• Pulse

External links

• Medical encyclopedia article on Systolic
• Wikipedia's article - Systolic

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