Artery

Coronary artery disease (CAD; also more simply referred to as coronary heart disease) is a specific type of atherosclerosis, which is in turn a form of arteriosclerosis (Dulson, Fraser, LeDrew, & Vavitas, 2011). All of these medical conditions entail the same problem, which hinders proper blood flow of oxygenated blood in the arteries: the sclerosis (that is, hardening) of arteries in the circulatory system (Sclerosis [medicine], 2016). Arteriosclerosis is a general term used to describe the…

the advancement of atherosclerosis in their arteries.12:All 2. Angioplasty- Patients with severe atherosclerosis have an artery that has a greater than 70% reduction in diameter due to cholesterol buildup. The mission of the procedure is to increase the amount of space available for blood flow in a mostly blocked artery. The surgeon will insert a balloon to open up the space and then insert a stent to ensure the artery stays open.12:All 3. Coronary Artery Bypass Grafting- This treatment is…

Stroke is the third leading cause of death in America and is one of the leading causes of disability. Just like everything else in our body, our brain is fed by blood through arteries. And just as high blood pressure can damages the arteries of our heart, it can damages the arteries leading to our brain. If the arteries to our brain are only partially blocked, you can experience a transient ischemic attack- kind of like mini stroke. Its a brief, temporary disruption of blood to your brain caused…

blood vessels that are, arteries, arterioles, capillaries, venules and veins. Veins are the blood vessels that transmit blood back to the heart. They may contain valves that stop blood flowing…

which is caused by an obstruction of a coronary artery through artherosclerosis, a thrombus or spasm. Heart attack often occurs when the flow of oxygen-rich blood to a section of the heart muscle becomes blocked which is mostly a result of coronary heart disease (NIH, 2012). According to National Institutes (NIH), Coronary heart disease is a condition that is as a result of a waxy substance, known as plaque that builds up inside the coronary arteries (NIH, 2012) and according to Centers for…

vessels and arteries. These vessels and arteries can sometimes become blocked due to an occlusion or pre-existing heart disease. The occlusion or pre-existing condition can be affected if there is a lack or decrease of oxygen being supplied to the heart muscle. Hypoxic cell injury is a mechanism where oxygen levels are decreased to the myocardial cells of the heart and results in atherosclerosis. Blood flows through each of the coronary arteries independently. When one of the arteries is…

Heart Disease in Women and their Unique Symptoms of a Heart Attack Introduction: Heart attacks are a very serious condition of the human body that require immediate attention. Heart attacks are known in the medical community as myocardial infarctions: myo- means muscle, cardio- means heart, -al means pertaining to; infarct means death of tissue (med term book). The parts come together as: tissue death pertaining to heart muscle (med term book). Each year, around one and half million cases of…

is present as a result of a blockage of the coronary arteries, leading to damage or death of the heart muscle.…

- Inner Layer; An inner endothelial cell layer called tunica intima lines the arteries and veins. The tunica intima, is a single layer of squamous epithelial cells that lines the inner surface of the entire cardiovascular system. In many veins, the tunica intima is equipped with pockets that act as one-way valves. These valves prevent the back flow of blood and allow the veins to act as supplemental pumps that help to keep the blood following in one direction, back toward the heart. The activity…

The initial electrical impulse that begins the process of a heartbeat is generated by a group of cells located in the upper chamber of the heart. This special pathway is as follow: the sinoatrial node, atrioventricular node, his-purkinje network. The impulse starts in a small bundle of specialized cell which is known as the sinoatrial node located in the right atrium. The sinoatrial node sets the rate and rhythm of the heartbeat. The atrioventricular node slows the electrical signal before…