The Heart Essay example - 1462 Words

Cardiovascular System: The Heart Purpose Explain why you did this exercise. Where there any safety precautions you needed to follow? If so, what were they? The safety precautions in this exercise were to wear goggles and gloves due to being exposed to chemicals and dissection of the sheep and cat heart. Appropriate work space was also required. Exercise 1: Microscopic Anatomy of Cardiac Muscle Observations Sketch and label your slide in the space provided. Include a description of the structures you observed on the slide. See attached picture labeled cardiac muscle Questions A. What are†¦show more content†¦The sheep heart has thicker walls and layers in the right and ventricle. Most of the internal structures are similar in both cat and sheep heart except for ligaments connecting the pulmonary artery to the aorta that is observed in the cat heart only. B. Why is the heart referred to as a double pump? It is referred as a double pump because it has two separate circuits, the pulmonary circuit pumping deoxygenated blood to the lungs and back to the heart and the systemic circuit pumping oxygenated blood around the body. C. There are four valves in the heart. Name each valve, list its location and give its function. Tricuspid valve - located between the right atrium and the right ventricle. Pulmonary valve - located between the right ventricle and the pulmonary artery. Mitral valve - located between the left atrium and the left ventricle. Aortic valve - located between the left ventricle and the aorta. The valves prevent the backward flow of blood. Valves have flaps that act as one-way for blood coming into a ventricle and one-way for blood leaving a ventricle. Each valve has three flaps, except the mitral valve, which only has two flaps. As the heart muscle contracts and relaxes, the valves open and shut, letting blood flow into the ventricles and atria at alternate times. When the left ventricle relaxes, the aortic valve closes and the mitral valve opens, to allow blood to flow from the left atrium into the leftShow MoreRelatedThe Heart Of Heart And Heart1569 Words   |  7 PagesFundamentally, the heart works as a pump for blood to the various parts of the human body. It is made up of four c hambers with two sections, upper and lower, on each side. The heart’s right side pumps blood to the lungs to be oxygenated then the blood returns to the heart’s left side for pumping into the body’s circulatory system that consists of blood vessels that transport the blood through all body organs. Heart failure does not necessarily translate to the complete non-performance of the heart. That isRead MoreThe Heart Of Heart Attack1510 Words   |  7 Pages The heart is the most essential biological structure in the body system; nobody can live without the heart. The major role of the heart is to pump blood throughout all the organs in the body; blood transported by the heart carries oxygen and nutrients around the body and removes all the dangerous wastes. We need oxygen to breath and nutrient to maintain our health. All muscles in the heart need oxygen to function properly. When there is a restriction of blood flow to the heart, the coronaryRead MoreThe H eart Of Heart Disease906 Words   |  4 PagesBased off of the case study regarding a 47 year old man who has recently been diagnosed with a heart disease known as CAD; I decided to further my research on this topic because it was intriguing to discover all heart diseases including coronary heart disease are taking the lives of countless individuals each year in our nation. A tremendous number of more than 13 million Americans (2005-2015, WebMD). This chronic disease is also known as atherosclerosis and is characterized as a fatty plaque build-upRead MoreThe Heart Of Heart Failure995 Words   |  4 PagesResearch by the American Heart Association (2014) states that heart failure effects an estimated 5.1 million Americans and it is predicted to increase 25% by 2030. Heart failure is a pathophysiological condition that indicates the heart is unable to promote enough cardiac output causing insufficient blood supply to the body. Pharmacological treatment for cardiac failure is dependent upon the ability to decrease rate of blood flow and blood pressure. Survival after heart failure diagnosis has improvedRead MoreThe Heart Of Heart Disease2050 Words   |  9 PagesHeart disease is known widely all over the world. It’s the number one death issue in the United States and also in the state of Oklahoma. Even though America is counted as one of the developed countries in the world, however, it still has an issue of finding a cure to stop these deadly diseases. In Oklahoma, the number one death issue is heart disease and strokes (Heart Disease and Strokes). â€Å"It is Oklahoma’s leading killer for both men and women, resulting in more than 9,000 deaths in 2012† (UnderstandingRead MoreThe Heart Of A Heart Disappointment3537 Words   |  15 PagesIntroduction: Services Directors for taking care of hearts. Those services will help to have a better quality but with higher cost. Ceaseless heart disappointment (CHF) is a perplexing, crippling disorder because of cardiovascular brokenness that weakens the capacity of the ventricle to load with, or launch, blood. Subsequently, common side effects, for example, dyspnoea and weariness happen very still or with lessened physical exertion. CHF regularly comes about because of harm to the myocardiumRead MoreThe Heart Of Heart Disease1764 Words   |  8 PagesHEART DISEASE Heart diseases also known as cardiovascular diseases are various conditions types that may interfere with the function of the heart. These condition types include atherosclerotic also known as coronary artery heart disease which is shown to affect arteries leading to the heart, the heart valve disease which affects the functionality of valves in regulating in and out of the blood flow to the heart. Cardiomyopathy affects the squeezing of the heart muscles. Arrhythmias also called theRead MoreHeart Attacks : A Heart Attack1468 Words   |  6 PagesHeart attacks can be scary no matter who you are or what you have experienced. To think that a heart attack could happen to you or someone you love can be terrifying. As you age the risk of you have a heart attack becomes higher and higher. When someone has a heart attack their blood that produces the oxygen for your heart can not get to your heart because it becomes blocked. Therefore, your heart cannot get the oxygen that it needs to sur vive. This is a scary thought because if the blood can notRead MoreLab Report Heart Dissection Of The Heart1033 Words   |  5 PagesReport Heart Dissection The heart is a fantastical organ. The fact that it can circulate blood throughout the body in a quick span of time and make sure every limb and organ is nourished is astounding. The wonder is only increased when we look upon the heart in an Aristotelian sense, as something created and working towards a function, where every part is there for a reason. If we keep in mind the purpose of the heart while looking at the way it is structured with veins, arteries, and the heart itselfRead MoreThe Heart Of Heart Failure1167 Words   |  5 PagesAmericans have been diagnosed with heart failure† (Mancini Colombo, 2015, p. 2542). Heart failure is a condition where the heart does not pump as efficiently; therefore, it does not meet the needs of the body. There is a growing number of heart failure patients each year. â€Å"More than 300,000 deaths per year are attributed to heart failure, and the annual cost to manage these patients is close to $40 billion† (Mancini Colombo, 2 015, p. 2542). Since the heart failure population is steadily growing