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Prostate Cancer Radiation Therapy
1,592 words... radioactive seeds into the prostate (brachytherapy). External beam radiation therapy is given over a course of 6 to 8 weeks through carefully defined portals. Refinements in technique have allowed greater doses of radiation to be administered with a lower risk of morbidity. Three-dimensional conformal radiotherapy is the preferred method of administration in a dose of 75 to 80 Gy. (Greenlee 32). Radiation therapy cannot cure nodal metastases. Disease-specific, 7 -year survival with radiation...
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Endoplasmic Reticulum Hemorrhagic Fever
3,146 wordsHantavirus: A Four Corners Study When a new virus appeared in the Four Corners region, American scientists were stumped. What was causing such a quick death to such healthy people? Was there a potential epidemic on their hands? No one knew, and when they finally determined that a strain hantavirus was involved, many were shocked. This had to be something completely new to the hantavirus family and that was somewhat overwhelming. Normally, the hantavirus only affects the kidneys, but this new vir...
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Pulmonary Artery Vena Cava
1,945 wordsHeartthe human heart is a specialized, four-chambered muscle that maintains BLOOD flow in the CIRCULATORYSYSTEM. Located in the thorax, it lies left of the bodys midline, above and in contact with the diaphragm. It is situated immediately behind the breastbone, or sternum, and between the lungs, with its apex tilted to the body cavity's left side. In most people the apex can be felt during each heart contraction. At rest, the heart pumps about 59 cc (2 oz) of blood per beat and 5 l (5 qt) per mi...
Free research essays on topics related to: connective tissue, pulmonary artery, heart muscle, mitral valve, vena cava -
Divided Into Four Pulmonary Artery
3,525 wordsTheHheart Biology Histology The Human Heart. Abstract: Dorlands Illustrated Medical Dictionary defines the heart as the viscus of cardiac muscle that maintains the circulation of the blood. It is divided into four cavities; two atria and two ventricles. The left atrium receives oxygenated blood from the lungs. 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. The right atrium receives the blood after it has p...
Free research essays on topics related to: mitral valve, pulmonary artery, vena cava, coronary arteries, divided into four -
Tricyclic Antidepressants Coronary Artery
4,629 wordsCardiac Location and Structures The heart is the driving force of the circulatory system, contracting about 70 times / minute to pump an adequate volume of blood with sufficient pressure to perfuse all body organs and tissues. The muscular organ, about the size of a clenched fist, weights from 300 to 400 g. It is located within the mediastinum of the thoracic cavity, above the diaphragm and between the lungs. This location subjects the heart? s activity to influence from all pressure variances d...
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Red Blood Cells Pulmonary Artery
6,589 wordsForwards and backwards to the right and are at the same level of the fifth to eight dorsal vertebrae. The apex of the heart points downwards and forwards to the left and corresponds to the space between the fifth and sixth ribs. However, in thin people, the hearts apex may be pointing more downwards than to the left. Its atrial border corresponds to a line drawn across the sternum on a level with the upper border of the third costal cartilage. Its apex corresponds to a line drawn across the lowe...
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Cystic Fibrosis Opportunistic Infections
3,228 wordsResearch Pseudomonas Aeruginosa Pseudomonas aeruginosa Research Paper Julie Johnson Pseudomonas aeruginosa is a versatile gram negative bacterium that grows in soil, marshes, and coastal marine habitats, as well as on plant and animal tissues. People with cystic fibrosis, burn victims, individuals with cancer, and persons infected with HIV are particularly at risk of disease resulting from Pseudomonas aeruginosa. Unlike many environmental bacteria, Pseudomonas aeruginosa has a remarkable capacit...
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