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Published byVivian Richard Modified over 9 years ago
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Blood Pressure Definition: The force blood exerts against inner walls of blood vessels Measured in the arteries Rises and falls with parts of the cardiac cycle
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Blood Pressure Blood Pressure reading has 2 components: Systolic pressure- maximum pressure during ventricular contraction Diastolic pressure- lowest pressure remaining in arteries before next ventricular contraction Normal BP = 120/80 (systolic/diastolic)
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Blood Pressure Influenced by: Blood volume – decrease in blood volume, decreases BP Ex: dehydration, hemorrhage Blood viscosity- increase viscosity (resistance to flow), increases BP Sympathetic ANS- fear, anger, rise in body temp, exercise; increase BP
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F= P (πr 4 / nL) For optimal blood flow, you want: Less Viscosity: To get: decrease intake of sodium, take blood thinners (aspirin) Increased Diameter: Reduce plaque buildup by decreasing intake of saturated fats, increasing intake of whole grains & fruits/veggies, and losing weight (can also take medications) Reduce stress Don’t smoke Decreased Length: Maintain a healthy weight
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