The Effects of Postural Changes, Exercise and Cognitive Stress on Essay

The Effects of Postural Changes, Exercise and Cognitive Stress on Human Arterial Pressure and Pulse Rate - Essay Example High blood pressure turns out to be silent killer which many people fail to detect, since it does not have any easily identifiable symptoms. The Circulatory System, which plays a major part in coronary health, functions mainly in the transportation of blood carrying nutrients and oxygen to all parts of the body. However, the Circulatory System is subjected to various pathological conditions. Pathological conditions may result from the abnormality of any component or processes in the Circulatory System. Heart disease results when coronary blood vessels are damaged and cannot provide adequate circulation of blood to the supporting cardiac muscles and tissues, thereby affecting the overall functionality of the systemic arterial blood pressure. According to the World Health Organization, 17 million people die of Cardiovascular Diseases (CVDs) including strokes and heart attacks annually (WHO, 2011). High blood pressure, specifically, has been identified as a major risk factor for most CV Ds and therefore, it should be monitored. The primary importance of studying the components and the processes of the circulatory system is to understand the relationship between the functions and the structures, and for proper diagnosis of the diseases affecting the Circulatory System. Normal blood pressure (BP) is generated when the blood flows through the arterial blood vessels. During systolic contraction, blood pressure peaks at 120 mmHg and drops to 70 or 80 mmHg during the diastolic phase. Essentially, blood pressure can be used as an indicator for abnormalities in processes or in structures within the Circulatory System. For example, changes in the elasticity of the arterial walls as in the case of arteriosclerosis can be identified by the increase in pulse pressure; however, it is the mean arterial pressure (MAP) that is important clinically. MAP is the main pressure that drives blood for systemic circulation. It is regulated to ensure that sufficient amount of blood is prop elled to the tissues, but the pressure would not be high enough to cause extra workload for the heart. As the blood passes through the arterial walls, the arteries expand to accommodate the amount of blood pumped by the heart.  

Ismg 2050 Assignment Example | Topics and Well Written Essays - 750 words

Ismg 2050 - Assignment Example For instance, I selected all the fields from the three tables. Then, I went ahead and put down California under the criteria section. As for the second query, I choose the VC data table as my preferred choice of data for my query. By following the same procedure as in query 1, I choose the query design from the create query menu. Then I went ahead and choose the violent robbery field from the table. I also choose the city table where I put down the states of Ohio and California on the criteria section. This enabled the query to only look for data in these two states only. Finally, I selected the totals from a design query, which allowed me to select which option I would like to compute. This included the sum, standard deviation, maximum and minimum totals under the group by drop down menu. For the third query, I used the city and property crime data tables. I selected the create query that set up a query design process. I then linked the two tables together and proceeded on selecting all the fields from the property crime table and the cities from the city data table. However, under the cities I put down the letters R and S for the criteria and or rows on the query. This then brought the desired results. Finally, in the fourth query I incorporated all the tables provided to come up with the results. First, I selected the design query from create menu and selected all the tables. I then proceeded in selecting all the required fields. In choose the city, the state, the property crime and violent crime