Essay --

The cardiac wheel is equilibrium to one complete intentbeat, first the atria contracts and wherefore ventricles contract and then unstuff. This can be marked by the numerous changes in relationship volume and pressure within the core. While the heart is in complete relaxation (diastole) the pressure in the heart is actually low, blood is flowing from the pulmonary and systemic circulations into the atria and on through to the ventricles the crescent-shaped valves are closed and the AV valves are open (Pearson, 475). Not recollective after atrial contraction occurs and atrial pressure step-ups, forcing residual blood into ventricles, then ventricular systole begins and intraventricular pressure increases swiftly, closing the AV valves. The ventricular pressure surpassed when this happens the semilunar valves are forced open, and the blood in the ventricular chambers is dispersed through the valves. In the course of this phase the aortic pressure reaches approximately 120mmH g in a healthy young adult. During ventricular systole the atria relax and their chambers fill with blood, resulting in a gradual increase in atrial pressure (Martini, 684). At the end of ventricular systole, the ventricles relax the semilunar valves closes come together (preventing backflow), and momentarily, the ventricles are closed chambers. The aortic semilunar valve snaps shut cavictimization a quick increase in the aortic pressure, results from the flexile recoil of the aorta after the valve closes. As the ventricles relax, the pressure within them begins to drop. The average heart beats approximately 75 beats per minute, the length of the cardiac cycle is about 0.8 second (Martini,). There are sounds heard in the cardiovascular system result from turbulent blood flow. There are dickens unmistakable sounds ... ...ds have disappeared the diastolic pressure is recorded. After the entropy is collect you must then calculate your numbers to get your mean arterial pressure (M AP) using the formula two-thirds diastolic plus one-third systolic (MAP=2/3 diastolic + 1/3 systolic). Checking my pulse to begin with and after light exercise I was able to obtain my cardiac output using the formula heart rate times gibe volume (CO=HR(SV)) because stroke volume varies with gender as well as body type professor Raj provides us with those numbers. After those numbers were cypher we were then able to measure the total peripheral underground (TPR) using what information we already had using the formula MAP/CO. In the data that follows you will see the average for a group of 25 multitude for each mean arterial pressure, cardiac output, and total peripheral resistance before and after the light exercise.