Harvey's Theory Of Blood Pressure

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Blood pressure is the pressure of the blood in the circulatory system. In the early 1600’s William Harvey began to learn and talk about the circulatory system. The circulatory system is the system that circulates blood throughout the body and also transports materials like nutrients through the body. In 1733 Stephen Hales was the first to know about the concept of blood pressure. He inserted a pipe into a horse’s artery and connected the pipe to a glass tube. He noticed that blood began to fill the glass tube. As time went by he concluded that the pressure of the arteries is what made the blood began to fill the tube. Hales had no way to record the measuring of the blood from the arteries so his theory could not be introduced
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When the body is at motion the blood pressure rises. When blood pressure is very high it is called hypertension. Hypertension can be caused by being overweight, old age or even smoking. When hypertension is caused the heart has to work much harder to pump blood back to the body and atherosclerosis, which is the hardening of the arteries start to happen and causes heart failure. Hypertension can be the cause of a heart attack, stroke or even kidney failure. There usually are no symptoms of hypertension so that is why it is very important to keep track of blood pressure. Blood maintains a flow and pressure throughout the body every day. Blood pressure is an important factor to obtain and measure over time.
Statement of Objective
The objective of the experiment was to compare the resting blood pressure of Jessica to the blood pressure after mild exercise. The information that was gathered was the systolic blood pressure and the diastolic blood pressure at rest and after exercise. What there was to learn from the experiment is how blood pressure can easily change with just the motion of walking down the hall for just a minute. The hypothesis was that Jessica’s blood pressure will not change just by walking down the hall.
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After walking, Jessica’s systolic pressure was heard much faster than her systolic pressure at rest, but her diastolic pressure at rest and after exercise did not change that much. Research states that “aerobic exercise, such as running, swimming or bicycling, increases the heart rate and generally increases the pressure with which blood is pumped, thus raising the systolic number. The diastolic pressure normally remains stable.” (High 2014) When exercising the muscles of the body, they need more oxygen. The heart pumps blood with more contractions to get blood around the body, which makes blood pressure increase. Your systolic blood pressure increases as the cardiovascular system delivers more blood to the working muscles. By maintaining exercise and being active you can lower your systolic rate to 4-9mmHg (High 2004). Normal blood pressure is usually 120 over 80 and Jessica’s blood pressure at rest and after exercise was not too low or not too high so Jessica’s blood pressure is proven to be

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