Tuesday, January 7, 2014


Tobacco Smoke and Lung Development This online experiment was mainly nigh how environmental tobacco heap, also known as second-hand gauge, stirred infantile children under the age of quint. Researchers wanted to know how and if it does get to lung problems. The meditation for this activity was that exposure to the cigarette smoke period enceinte and after birth would result in changes in lung suppuration and development. In the experiment, mice were used in both the data-based and work groups. In the experimental group, pregnant female mice were candid to the environmental tobacco smoke for one hour a day, louver geezerhood per week, until the birth of the pups. Once they are born, the pups were once again exposed to the cigarette smoke for one hour per day, five days per week for three weeks. In fiat to read the misemploy done to the lungs, we analyzed six slides of the lung tissue samples out of one hundred twenty slides. We measured the amount of septal tissue by estimating the septal tissue volume in for each one slide practice a grid laid over the lung tissue image. We counted each instance that a grid crosshair touched septal tissue.
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From the counts from the slides of the subordination group and the experimental group, we concluded that animals exposed to cigarette smoke have less septal tissue than the animals in the contestation group. The mice exposed to the ETS have less surface area in their lungs and most likely a reduced capability for waste exchange. In the end, we found out that the data we collected was consistent with the hypothes is that the second hand smoke did in circu! mstance affect lung development. In respect to humans, as the lungs continue to rejoin and develop, the size of the lung increases by the addition of refreshful septa. The harms of the ETS may hunt expedition the changes in lung structure by preventing the formation of new septa. As a result, the lungs will have fewer bigger alveoli substance it would have lesser surface area unattached for attack exchange.If you want to get a full essay, order it on our website: OrderCustomPaper.com

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