The Heart Essay example

Both the right and left atrium contract causing blood to flow though the two valves, and then into the left ventricle. The left ventricle pumps blood into the systemic circulation through the aorta. This systemic circulation system is much bigger than the pulmonary circulation system, which is why the left ventricle is so big. The blood on the left side of the heart is oxygenated. It becomes oxygenated when the deoxygenated blood passes through the right atrium and then flows into the left ventricle. It is then pumped along the pulmonary artery into the lungs where it is oxygenated. It then travels through the pulmonary veins back into the heart. It enters through the left atrium and then travels to the left ventricle. This process is repeated over and over again, to make blood continuously flow through the heart, lungs and body. This process ensures that there is always enough oxygen for the body to work

Heart valves ensure one way blood flow through heart. The atrioventricular (AV) valves lie between the atria and the ventricles prevents the back flow of blood in to the atria while the ventricles contract. Chordae tendinae anchor AV values to papillary muscles. The left AV valve, the mitral or bicuspid valve consists of two cusps of endocardium. The right atrioventricular valve, the tricuspid valve, has three cusps. The second sets of valve are the semilunar valves. The pulmonary semilunar valves lie between the right ventricle and pulmonary trunk. Aortic semilunar valves lie between ventricle and the aorta. Semilunar valves prevent the backflow of blood into the ventricle.

The four valves of the heart are the tricuspid valve, the pulmonic valve, the mitral valve, and the aortic valve. The tricuspid valve is located between the right atrium and the right ventricle. It is responsible for allowing blood to flow from the atrium to the ventricle, preventing backflow of blood into the atrium. The pulmonic valve is located between the pulmonary arteries and the right ventricle and is responsible for allowing blood flow from the heart to the lungs. The mitral valve is found between the left atrium and the left ventricle, which allow blood to flow from the left atrium into the left ventricle preventing backflow of blood back into the left atrium. The aortic valve is found between the aorta and the left ventricle and allows blood to flow to the aorta and throughout the body.

Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken.

5. ___G__ You go to a lecture and the topic seems to focus on blue-yellow and red-green perception of color. The lecture is likely discussing ______________.

Read the article Diagnosis Coding and Medical Necessity: Rules and Reimbursement by Janis Cogley located on the AHIMA Body of Knowledge (BOK) at http://www.ahima.org.

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.

G. Name the major artery and vein that deliver and drain blood to and from the kidneys.

Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken.

R E V I E W S H E E T 30 Anatomy of the Heart

When the left ventricle is full, the bicuspid valve closes and the aortic valve opens. This allows the blood into the aorta and once the blood passes the aortic valve closes. Finally, the blood then has access through the rest of the body by systematic capillaries  veins  back to the right atrium.

2. Discuss the anatomical differences between frog and human hearts. The frog heart has a single ventricle and two atria.

Throughout the practical investigation, there were a variety of safety precautions implemented. This not only prevented physical injury, but allowed the efficient progress of the practical investigation in a safe manner.

The Heart is a very important organ in the body. It is what keeps your blood flowing and your organs going. It is a tireless muscle that pumps more than two thousand gallons of blood every day. The blood that is pumped is filled with nutrition and oxygen (Colombo 7). It travels through out your body in less than sixty seconds. So it needs to be taken extra good care of. When abuse is put on the body, the heart’s performance is not at its best. The Heart is a major organ that needs loving and care. Everyone has only one and by abusing it, they are cutting their live span little by little. People can live their lives freely but how they choose to live them could be the difference between life and death.

Surrounding each of these valves are dense fibrous rings or annuli made of connective tissue that forms the cardiac skeleton. The annuli of the aortic valve forms the base for the other annuli as it is located central to the other valves. Fibrous extensions from the annuli of the aortic valve extends outwardly and anchors the other three valves. In addition to the four annuli there are other fibrous components of the cardiac skeleton such as the right and left fibrous trigones, and the membranous septum. The right fibrous trigone is also know as the central