HUMAN BLOOD STRESS
BLOOD STRESS It is defined as the lateral pressure exerted by column of blood of the walls of blood vessels. Venous pressure is less than arterial pressure. Contraction of the left ventricle during systole pushes blood into the arterlal syatem. he pressture produced is called the systolic hl lood pressure (SBP) and is about 120 mm Hg, During the diastole the pressure in the arteries is called the diastolic blood pressure (DBP). It is about 80 mm Hg. Factors affecting blood pressure are: ⚫Age ⚫Body built ⚫Posture ⚫Exercise ⚫Sleep Blood pressure (BP) is measured by an instru ment called sphygmomanometer. There are two methods by which one can record BP. 1. Palpatory 2. Auscultatory. 🔘Palpatory Methods : The subject is either seated comfortably or is lying supine on the examination couch for 5 minutes. The blood pressure c...