Essay on human heart. The Human Heart Essays 2022-10-12
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The human heart is a vital organ that is responsible for pumping blood throughout the body. It is located in the chest, behind the breastbone and between the lungs. The heart is a muscular organ that is made up of four chambers: the left and right atria, and the left and right ventricles.
The heart plays a crucial role in the body's circulatory system, as it pumps oxygen-rich blood to the body's tissues and organs, and removes waste products such as carbon dioxide. The heart is also responsible for maintaining blood pressure and regulating the flow of blood throughout the body.
The heart is made up of several different types of tissue, including muscle tissue, connective tissue, and nervous tissue. The muscle tissue is responsible for contracting and relaxing to pump blood, while the connective tissue provides structural support and helps to keep the heart in place. The nervous tissue helps to control the heart's functions and is responsible for transmitting electrical signals throughout the heart.
The heart is a complex organ that is essential for life. It is constantly working to maintain the body's blood flow and ensure that the body's tissues and organs receive the oxygen and nutrients they need to function properly. The heart is also important for maintaining a healthy blood pressure, which is essential for maintaining overall health and well-being.
There are several factors that can affect the health of the heart, including diet, exercise, and stress. A diet that is high in saturated fats and cholesterol can increase the risk of heart disease, while regular exercise and stress management can help to improve heart health.
There are also several conditions that can affect the heart, such as coronary artery disease, heart attacks, and heart failure. These conditions can be serious and can lead to serious complications, including death. However, with proper treatment and lifestyle changes, many people are able to manage these conditions and live long, healthy lives.
In conclusion, the human heart is a vital organ that plays a crucial role in the body's circulatory system. It is essential for maintaining good health and well-being, and there are several factors that can affect its health. By taking care of the heart and making lifestyle changes such as eating a healthy diet and exercising regularly, we can help to ensure that our hearts remain healthy and strong.
Essay About: Right Atrium And Human Heart
The sac that the heart is housed in is called the pericardium. During this isovolumetric contraction, the AV valves bulge into the atria, causing a small but sharp rise in atrial pressure. About twenty-two percent of men and forty-four percent of women will develop heart failure within six years of having a heart attack. The action of heart includes contractions and relaxations of the atria and ventricles. It begins as a small downward deflection Q and continues as large upright R and triangular wave, ending as downward wave S at its base. Housing the urinary and reproductive organs. It is also known as heart and circulatory disease BHF, 2011.
The blood enters through veins and enters the right atrium. This functiontraditionally has to handle administrative and transactional services for large number andseveral category of employee in a firm. Also I will talk about the facts, the anatomy ,the functions and the most important which is the heart diseases and the preventions of the human heart. The two atria are directed upwards and backwards to the right and are at the level of the fifth through the eight dorsal vertebrae. .
It then returns to the heart via the pulmonary veins lungs to heart and is ready to be pumped around the …show more content… Describe the conditions high and low blood pressure. The SA node is a mass of neuromuscular tissue. The impulses received from the aorta and carotid sinuses decrease the heart rate, whereas the impulses from the vena cava increase the heart rate. Valves There are four valves in the heart namely bicuspid valve, tricuspid valve, pulmonary valve and aortic valve. Each heart beat includes one systole contraction phase and one diastole relaxation phase of the heart to distribute and receive blood to and from the body.
Introduction In our world organisms occupy a sliding scale of complexity. The lumen passage is large; the veins are pumped by the skeletal muscle. There are three types of blood vessel, arteries, capilleries and veins. It has a mass that ranges from 250 grams to 350 grams. The theme in ender's game is human nature is to destroy that which we do not understand and we know that because of what the bible says, the need to kill the buggers and the whole training the launchies go through.
Essay on Human Heart: Location and structure (With Diagram)
Their attachment is the same as on the right side except they are thicker, stronger, and less numerous. Blood pressure, or the pressure of the blood in the cardiovascular system, is crucial in the human body, because it is the main transportation system that travels to and from cells. From there the blood passes to the left ventricle, which forces it via the aorta, through the arteries to supply the tissues of the body. Oxford, UK: Blackwell Publishing. Fibrous extensions from the annuli of the aortic valve extends outwardly and anchors the other three valves. Once the blood is transferred to the aorta it supplies the oxygenated blood to different parts of the body. The upper two chambers are called the atriums and the lower two chambers are called the ventricles.
Not to mention, it is human nature to be good at heart. Pericardium Protective Covering : It is a 2-layered sac consisting of outer parietal pericardium and inner visceral pericardium attached to the heart. Survival after heart failure diagnosis has improved The Heart Of A Heart Disappointment Introduction: Services Directors for taking care of hearts. Your heart contains a right and left atrium, and directly under those, a left and right ventricle. The mammalian circulatory system is known as a double circulatory system because, on every circuit of the body, blood passes through the heart twice. The endocardium is where the blood makes direct contact and is the last layer of the heart. Internal Structure: The internal structure of the heart can be better studied by dissecting it from the ventral side.
It represents ventricular de-polarisation ventricular contraction. During atherosclerotic heart disease i. Valves inside the veins keep blood moving in one direction. The thoracic cavity is a chamber of the body that is between the lungs and is safe, this is because the rib cage ensures the safety of the thoracic cavity. The base of each valve is supported by a fibrocollagenous ring. Your heart also has two main exiting arteries: the pulmonary trunk which exits from the right ventricle and the aorta which exists from the left ventricle.
An elephant has normal heart rate of about 25 per minute whereas mouse has a normal heart rate of several hundred per minute. Usually it is slightly on the left side of the chest but in rare cases, it can be found on the right side. The abdominopelvic cavity fills the lower half of the trunk and is subdivided into the abdominal cavity and the pelvic cavity. To be more precise, the heart is a muscle about the size of a fist, that never rests unless the person is dead from working for the body. The AV node contains a rich nerve and blood supply. The example here is used to reveal movement, and its links to the beauty of the heart.
This requires more oxygen and thus indirectly increases heart beat. History has gone through some rough patches, but with history comes change. It is protected by the tricuspid valve. These services were detached from actual businesses or business processes. The lungs are located on either side of the breastbone in the chest cavity and are divided into five main sections lobes. This paper will make a case for having HR report to the CEO.
The right atrium is capable of containing about two ounces of fluid. The purpose of right atrium of the heart is to receive deoxygenated blood from the body through the inferior vena cava and pump it into the right ventricle MedicineNet. The pericardium protects the heart from shocks and mechanical injuries and also allows free movements of the heart. The two largest human body cavities are the ventral cavity and dorsal cavity. Parts of the Heart Order custom essay The Human Heart with free plagiarism report As you can see in the heart diagram, there are many parts in the heart. They help in preventing the back flow of the blood from one chamber to other. The AV valve allows blood to flow into the right ventricle.