Trace the pathway of blood through the heart Article

Trace the pathway of blood through the heart - Article Example Five subjects inhaled about 100MBq of Technegas after which body images were taken at time gaps to determine the distribution of the Technegas. The earliest detection of radioactivity in the blood was after one minute, reaching a maximum after about 20 minutes stabilizing at that point for one hour. The radioactivity in the liver was stable, whereas that of the bladder increased over time. Strong radioactivity was discovered in the salivary glands, thyroid glands, and stomach because of accumulation of TcO4- in these organs (Nemmar et al. 413). Ingested particles also caused radioactivity in the stomach apart from the TcO4- from saliva and gastric secretions. â€Å"We conclude that inhaled ultrafine 99mTc-carbon particles, which are very similar to (the ultrafine fraction of) actual pollutant particles, diffuse rapidly into the systemic circulation, and this should be considered relevant for the cardiovascular morbidity and mortality related to ambient particle pollution† (Nemmar et al. 413). I selected this article because it is relevant to studying the pathway of blood through the body. It even shows how the substances that get into blood distribute to various parts of the body, a phenomenon that is of utmost significance in physiology. I learnt that inhalation of ultrafine particles is extremely dangerous since they have a large surface area and, therefore, diffuse rapidly. Nemmar, A., P.H.M. Hoet, B. Vanquickenborne, D. Dinsdale, M. Thomeer, M.F. Hoylaerts, H. Vanbilloen, L. Mortelmans and B. Nemery. â€Å"Passage of Inhaled Particles into the Blood Circulation in Humans.† Circulation. 2002.105 (2002):411-414. Web. 27 Nov.