What Is Blood Pressure and What Are the Ways the Body Regulates It
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As such, our bodies must maintain control over our blood pressure to keep it at a normal level. In this article, we will consider the short term and long term control of blood pressure, as well as some of the problems when control of blood pressure is lost.
It is used to treat emergency hypertension and severe cardiac failure. It expands both arterial and venous blood vessels, and consequently a reduced peripheral resistance and venous return (Greenstein, 2009). Ace inhibitors also help to reduce blood pressure, however, if a patient is taking this drug with diuretics the initial dose should be low because it can lead to a sudden fall in blood pressure (Greenstein, 2009). ACE inhibitors should not be given to pregnant women as it can lead to feotus damage. When the body’s blood pressure is too high (greater than 120/80mmHg), the baroreceptors reflex increases which activate the parasympathetic stimulations of the heart, which leads to a fall in cardiac output. Sympathetic stimulations in the peripheral arterioles will fall leading to vasodilation (the relaxation of the walls of blood vessels) and a consequent fall in blood pressure (Martín-Vázquez and Reyes del Paso, 2010) is achieved.
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Martín-Vázquez, M., Reyes del Paso, G.A., 2010. Physical training and the dynamics of the cardiac baroreflex: A comparison when blood pressure rises and falls. Int. J. Psychophysiol. 76, 142–147. https://doi.org/10.1016/j.ijpsycho.2010.03.004