Summary: The Cardiovascular System

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Introduction The cardiovascular system is a fundamental system for survival, providing the body nutrients and removing waste via a network of arteries, arterioles, capillaries venous and veins. (Sherwood). Understanding this fundamental system is critical to help further understand even more complicated medical conditions such as Postural orthostatic tachycardia syndrome (POTS), inappropriate HR increase when standing (Freeman et al., 2011). In addition, the cardiovascular system also has other properties that helps ensure proper function. One of those properties involves how the veins dilate in response to metabolites, waste products from muscles cells (Crecelius et al., 2013). These metabolites cause the vasodilation, to make it easier …show more content…
It is hypothesized that lowered skin color and temperature will correlate with lack of blood flow to the arm and veins will further distend with increasing external pressure, occlusion way from the heart the arm being lower than the heart. These sections are being tested using gravity, finger occlusion and use of sphygmomanometer at low …show more content…
31-41). Data was collected and analyzed using BioPac Software. Graphs and tables were generated by using Microsoft Excel. Effects of Posture on Blood Pressure (BP) involved a tilt table, with a subject laying in a supine position for at least 5 minutes. A heart rate (HR) was being monitored during the entire process with ECG and was calculated using an average of 10 beats. An initial blood pressure in both arms was taken and then retaken immediately after tilt in to upwards position, 30 seconds after tilt and 2 minutes after tilt. During Vasodilation in Response to Metabolites, the subject extender their arm over their head and clenched the hand roughly 15 times, holding a tight fist. A cuff was inflated to 150 mmHg then the arm was placed on the bench to observe color and

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