The Cardiovascular System Essay Smaple
Your arteries that supply blood to the muscles of the heart have been blocked and this has resulted in an injury of the muscles of the heart due to insufficient blood in them. This condition may have been caused by several factors : blood pressure exceeding the normal limits which are 140 over 90 mmHg resulting to tension in the arteries , progressive thickening and hardening of the arteries due to deposits of fat on their walls and cigarette smoking (Shridhar , 2007). You will be able to understand how these factors can affect your heart and also how you can change your lifestyle so as to reduce chances of suffering this condition again once you read this pamphlet.
High blood pressure which has caused tension in your arteries has resulted to an injury in the inner lining of the arteries (Shridhar , 2007). This has led to a build up of lipids and other substances in the injured areas . This has contributed to formation of blood clots within the arteries which prevent smooth passage/flow of blood and this has resulted to an injury to heart muscles due to insufficient blood in them. High lipid (fat) levels in your blood may also have caused this condition (Shridhar , 2007). These lipids are the low- density lipoprotein which are composed of a combination of lipid(fat) and protein . These low-density lipoproteins are considered as bad cholesterol since they transport cholesterol from the liver to the body tissues . These low-density lipoproteins deposit cholesterol on the artery walls causing a hard, thick substance called cholesterol plague to form on the artery walls (Shridhar , 2007).
Cigarette smoking increases the number of heart beats per minute and causes narrowing of the blood vessels outside the heart due to a contraction of the vessel’s muscular walls. Cigarette smoking also causes blood pressure to exceed normal limits hence overworking the heart muscle (Shridhar , 2007). Cigarette smokers also breath in carbon dioxide which decreases the amount of oxygen in the oxygen carrying protein pigment in the red blood cells. These factors cause the heart muscle to work harder while it has a lower/ subnormal concentration of oxygen.
A balloon-tipped catheter has been inserted through your artery to enlarge it since its narrowed (Smith , 2007) . The hard, thick substance called cholesterol plague that had formed in your affected artery has also been removed. These procedures have led to the opening up of your affected artery to facilitate increased flow of blood through it (Smith , 2007). You are advised to schedule extra time during your next appointment to talk to the nurse about how you can modify your lifestyle to decrease the risk of a recurrence of this condition.
The cardiovascular system can regarded as the transport system of the body which has basically three components: the heart , the blood vessels and the blood itself (Shridhar , 2007). While the heart pumps the blood , the blood vessels act as the delivery routes for the blood. Blood on the other hand is a fluid that contains the nutrients required by the body and also removes wastes from the body. This system also helps to regulate body temperature and PH (Shridhar , 2007).
The heart is divided into two sides with each side having two chambers. These chambers are the atrium which is the upper chamber and the ventricle which is the lower chamber (Shridhar , 2007). Blood rich in carbon dioxide and cellular waste products is carried from the body to the heart by the blood veins . This blood goes to the right atrium and then to the right ventricle and from here its pumped to the lungs to dispose of wastes and then obtain a fresh oxygen supply . Blood from the lungs returns to the heart through the left atrium and then through the left ventricle (Shridhar , 2007). This blood is then pumped out of the heart by the left ventricle into the aorta which sends it to the small arteries which carry it to the rest of the body to supply oxygen (Shridhar , 2007).