Diastolic

Diastolic

Diastolic (pronunciation: /daɪəˈstɒlɪk/) refers to the phase of the cardiac cycle when the heart relaxes and fills with blood. This term is often used in the context of blood pressure, where it represents the lower value in a reading.

Etymology

The term "diastolic" is derived from the Greek word "diastole," which means "a drawing apart."

Related Terms

• Systolic: The phase of the cardiac cycle when the heart contracts to pump blood out. It represents the higher value in a blood pressure reading.
• Blood Pressure: The pressure of the blood in the circulatory system, often measured for diagnosis since it is closely related to the force and rate of the heartbeat and the diameter and elasticity of the arterial walls.
• Hypertension: A condition characterized by consistently high blood pressure, often with a systolic pressure over 140 or a diastolic pressure over 90.
• Hypotension: A condition characterized by abnormally low blood pressure, often with a systolic pressure under 90 or a diastolic pressure under 60.

See Also

• Cardiology
• Cardiovascular system
• Heart rate
• Pulse

External links

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

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