Systolic Pressure And Diastolic Pressure Essay

1821 Words Jul 15th, 2016 8 Pages
Introduction:
Blood pressure is controlled by the autonomic nervous system and is the pressure of the circulating blood being exerted upon the arterial walls of the blood vessels. Blood pressure is determined by ones cardiac output, blood volume, and peripheral resistance. Blood pressure is expressed by a systolic pressure and diastolic pressure and is measured in millimeters of mercury (mmHg). Systolic pressure is the maximum pressure during ventricular contraction of the left ventricle while diastolic pressure is the minimum pressure used when the left ventricle relaxes. The differences between systolic pressure and diastolic pressure is called pulse pressure. Normal blood pressure ranges for an adult falls between 90/60 mmHg - 120/80 mmHg. Having a blood pressure that is too high or too low can slowly lead to future medical issues. Hypertension is when a persons chronic resting blood pressure is greater than average. For example, 140/90. Hypertension can lead to weaken small arteries and cause aneurysms. Hypotension is when a persons chronic resting blood pressure is lower than average, anything falling between 90/60. Hypotension can lead to blood loss, dehydration, and anemia. The most common way blood pressure is measured is by the use of a sphygmomanometer. A sphygmomanometer is an inflatable cuff containing a bulb that is commonly used on ones brachial artery of the upper arm. A stethoscope is used to hear the heart pulses through the arm. To measure blood pressure,…

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