Presion arterial

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Presion arterial

Normal blood pressure is vital to life. Without the pressure that forces our blood to flow around the circulatory system, no oxygen or nutrients would be delivered through our arteries to the tissues and organs.

However, blood pressure can become dangerously high, and it can also get too low. In this article, we will discuss what Presion arterial pressure is, how it is measured, and what the measurements mean for our health. What is blood pressure? Presion arterial a pump or water tank, no water will flow.

Hose pipe properties also affect water pressure.

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Similar principles apply for blood flow. Blood pressure is the force that moves blood through our circulatory system. It is an important force because oxygen and nutrients would not be pushed around our circulatory system to nourish tissues and organs without blood pressure.

Blood pressure is also vital because it delivers white blood cells and antibodies for immunity, and hormones such as insulin. Just as important as providing oxygen and nutrients, the fresh blood that gets delivered is able to pick up the Presion arterial waste products of metabolism, including the carbon dioxide we exhale with every breath, and the toxins we clear through our liver and kidneys.

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Blood itself carries a number of other properties, including its temperature. It also carries one of our defenses against tissue damage, the clotting platelets that prevent blood loss following injury. But what exactly is it that causes blood to exert a pressure in our arteries? Part of the answer is simple - the heart creates blood pressure by forcing out blood when it contracts with every heartbeat.

Blood pressure, however, cannot be created solely by the pumping heart. Function Our circulation is similar to a highly sophisticated form of plumbing - blood has 'flow' and arteries are 'pipes. Blood flows through our body because of a difference in pressure.

Our blood pressure is highest at the start of its journey from our heart - when it enters the aorta - and it is lowest at the end of its journey along progressively smaller branches of arteries.

That pressure difference is what causes blood to flow around our bodies. Arteries affect blood pressure in a similar way to the physical properties of a garden hose pipe affecting water pressure.

Constricting the pipe increases pressure at the point of constriction. Without the elastic nature of the artery walls, for example, the pressure of the blood would fall away more quickly as it is pumped from the heart. While the heart creates the maximum pressure, the properties of the arteries are just as important to maintaining it and allowing blood to flow throughout the body.

The condition of the arteries affects blood pressure and flow, and narrowing of the arteries can eventually block the supply altogether, leading to dangerous conditions including stroke and heart attack.

Measurement When the pressure from the arm cuff stops the pulse briefly, it gives the top figure of arterial blood pressure that we are familiar with from medical dramas - for example, " over 90" The device used to measure blood pressure is a sphygmomanometer, it consists of a rubber armband - the cuff that is inflated by hand or machine pump.

Once the cuff is inflated enough to stop the pulsea reading is takeneither electronically or on an analogue dial.

The reading is expressed in terms of the pressure it takes to move mercury round a tube against gravity. This is the reason for pressure being measured using the unit millimeters of mercury, abbreviated to mmHg. Readings A stethoscope identifies the precise point when the pulse sound returns and the pressure of the cuff is slowly released.

Using the stethoscope enables the person measuring the blood pressure to listen out for two specific points. Blood pressure readings consist of two figures - the systolic pressure first and the diastolic pressure second.

The reading is given as, for example, over 90 mmHg. The systolic pressure is the higher figure caused by the heart's contraction, while the diastolic number is the lower pressure in the arteries, during the brief 'resting' period between heartbeats.

Ranges Adapted from source The National Institutes of Health cite normal blood pressure to be below mmHg systolic and 80 mmHg diastolic. However, blood pressure changes naturally, a fact that is best described in a quote from cardiologists writing about blood-pressure variability in a paper published by Nature in March Tips The guidelines for doctors list the following measures patients can take to help keep a healthy blood pressure: Keep a healthy body weight.

Eat a diet rich in fruits, vegetables, and low-fat dairy products. Cut down on sodium salt in the diet. Take regular aerobic exercise, such as brisk walking, for at least 30 minutes a day, most days of the week.La presión arterial es la fuerza que ejerce la sangre contra las paredes de las arterias.

Cada vez que el corazón late, bombea sangre hacia las arterias, que es cuando su presión es más alta.

Presión arterial alta: MedlinePlus en español

Lea sobre la presión arterial alta o hipertensión. Descubra cómo hacer más ejercicio y consumir menos sal pueden ayudar a controlarla. La hipertensión es un problema cardiovascular común que afecta a hombres y mujeres.

Sin embargo, si no se trata, puede amenazar la vida. Por esto, es vital mantener la presión sanguínea bajo control ya que cuando envejeces, se hace más difícil de tratar.

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Presion arterial

“By adapting selected lifestyle health principles, half of the people in our study achieved normal blood pressure within two weeks while avoiding the side effects and costs associated with blood pressure medications,” said research team leader M. Alfredo Mejia, associate professor at Andrews University.

La tensión arterial normal en adultos es de mm Hg 1 cuando el corazón late (tensión sistólica) y de 80 mm Hg cuando el corazón se relaja (tensión diastólica). Cuando la tensión sistólica es igual o superior a mm Hg y/o la tensión diastólica es igual o superior a 90 mm Hg, la tensión arterial se considera alta o elevada.

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