The Relationship Between Heart And Ventricular Pressure

Inside our body there is a powerful muscular pump, which is known as the one of the main organs in the human body. This hollow, cone shaped, pump lies slightly left within the center of the chest called our heart. The heart is made up of different structures and actions in order for it to work, combined with a network of blood vessels form what we know as the cardiovascular system.

The cardiovascular system, however, would not be able to effectively complete these functions without help from what is sometimes referred to as the body’s hardest-working organ- the heart. Approximately the size of a fist, the heart is contains four chambers (the uppermost are called the atria and the lowermost are called the ventricles) and four valves. Additionally, the heart is surrounded by the pericardium, a structure that serves to protect the heart, keep the heart stabilized in the chest, and

In a normal human being the heart correctly functions by the blood first entering through the right atrium from the superior and inferior vena cava. This blood flow continues through the right atrioventricular valve into the right ventricle. The right ventricle contracts forcing the pulmonary valve to open leading blood flow through the pulmonary valve and into the pulmonary trunk. Blood is then distributed from the right and left pulmonary arteries to the lungs, where carbon dioxide is unloaded and oxygen is loaded into the blood. The blood is returned from the lungs to the left

The heart is basically a pump that has to circulate the blood around the body delivering oxygenated blood to our organs and then returning deoxygenated blood to our lungs. There are four chambers in the heart, two atria and two ventricles. There are four main valves, mitral, aortic, tricuspid and pulmonary7b.

Oxygen and nutrients the body requires for function are pumped around this complex network of blood vessels by the heart. At roughly the size of a human fist, the heart is a four-chambered muscle and performs two functions of circulation simultaneously and continuously. Systemic and pulmonary circulation. The heart is made up from three separate layers of cardiac tissue; the outer layer called the pericardium, which is a double sac-like outer covering with serous fluid inside to keep the middle layer, the myocardium from adhering to the outer layer. This middle layer of the heart is the heart muscle which is thicker on the left side, to aid with the pressure needed to sustain systemic circulation. The inner layer of the heart is the endocardium. It’s lining is smooth to help prevent the blood which circulates around the inside of the heart from clotting. The heart is the human body’s in-built pacemaker, and the electrical signals sent through the it cause the heart to contract and relax. This process is triggered by the autonomic nervous system and the contraction and relaxing cycle is

The heart is a very strong muscle that has one major job. The heart’s job is to pump blood throughout the entire body. The heart is made up of 4 chambers, and 4 valves. There is the right and left atrium, and a right and left ventricle. The atriums are the superior chambers, and the ventricles are inferior chambers. The left ventricle is the most important, because that is where the blood travels through to go to the aorta, and eventually the rest of the body (Taylor 2015).

Rheumatic fever is a disease that can occur following an infection caused by the Group A streptococcus bacterium. If untreated, an infection such as ‘strep throat’ may lead to a delayed complication featuring widespread inflammation in other parts of the body, particularly the joints, heart, skin and brain.

Doctors say that rheumatic heart disease can be controlled or prevented by treating strep throat thru antibiotics. Treating the disease at an early stage is very important because rheumatic fever is the main cause of rheumatic heart disease. It is also very important to treat it so early because it causes fibrosis of the heart which then leads to heart disease, heart failure, and eventually will lead to death. Rheumatic heart disease usually affects the lower social economics that don’t have the resources to medical attention. Young children usually 10-15 are usually the most ones affected by rheumatic heart disease. It is caused by a group A streptococcal infection causing inflammation in the throat and it is highly contagious. Secondary prevention

The inside of your heart is divided into four chambers. The two upper chambers of your heart are called atria. The atria receive and collect blood. The two lower chambers of your heart are called ventricles. The ventricles pump blood out of your heart into the circulatory system to other parts of your

The heart has two sides, separated by an inner wall called the septum. The right side of the heart pumps blood to the lungs to pick up oxygen. The left side of the heart receives the oxygen-rich blood from the lungs and pumps it to the body. The heart has four chambers and four valves and is connected to various blood vessels. Veins are blood vessels that carry blood from the body to the heart. Arteries are blood vessels that carry blood away from the heart to the body.

The heart is divided into four chambers. The top two chambers are the atria and the bottom two chambers are the ventricles. Two of the chambers, together make up the right heart and pump blood to your lungs, where it picks up oxygen. Blood that is carrying oxygen then travels to the two chambers on the left side of your heart, which then pumps the blood to the rest of your body. The ventricles (the bottom chambers) are powerful pumping chambers, which push the blood out of the heart when they contract. The smaller and less powerful top chambers of the heart (the atria), help to fill the ventricles with blood for the next contraction. The regulation and coordinated pumping action of the heart is provided by a network of electrical connections, which deliver electrical signals to the heart

has to work harder pumping blood to the rest of the body. Blood in our

The upper two chambers, atria, carry blood to the heart. The lower two chambers, ventricles, carry blood out of the heart. In the pulmonary circuit, blood flows from the veins to the right atrium to the right ventricle to the pulmonary arteries to the lungs. In the systemic circuit, blood flows from the left atrium to the left ventricle to the aorta to the branching arteries to the capillaries throughout the body. The heart has valves to prevent the backward flow of blood. Atrioventricular valves separate the atria and ventricles. The pulmonary valve and aortic valve separate the ventricles and arteries. A heartbeat is the sound the valves make as they open and

2)- Structure/Anatomy of the Heart: The heart is a muscular pump and consists of four chambers: two superior atria and two inferior ventricles. The atria are the areas of the heart that receive blood that is returning to the heart after being circulated, whereas the ventricles are the chambers that propel blood out of the heart to then be circulated around the body. The heart chambers are further divided by the inter-atrial septum and the inter-ventricular septum (Marieb & Hoehn 2013, p. 662).

Although the pathogenic mechanism of ARF and RHD is not yet fully understood, a correlation between rheumatogenic GAS strains and inheritably liable hosts, results in abnormal immune responses and the development of autoimmunity (Steer & Carapetis, 2009). This is caused by antibody cross-reactivity and more specifically a result of molecular mimicry (Porth & Matfin, 2009). In the usual situation of a streptococcus infection, an immune response will be instigated involving B cell presentation of the antigen, CD4- T cell differentiation, helper T cell formation and plasma B cell antibody production. Through this process the antibodies are enabled to destruct the precise protein structure of the GAS cell wall. However in this case, the targeted protein of the bacterium has considerable similarity to antigens presented on the heart and kidney tissues which causes autoimmune activity. Once the micro organisms have been eradicated, the remaining antibodies mistake the identity of certain somatic cell resulting in inflammation and the onset of ARF symptoms two to three weeks after the absence of the infection (Porth & Matfin, 2009).