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$20.00 Anatomy

  • From Biology: General-Biology
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  • Due on Apr. 18, 0000
  • Asked on Apr. 09, 2012 at 11:17:40AM
Asked by :
bkeyondra
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Q:
Let’s go on a “Fantastic Voyage!” Imagine that you are a video reporter piloting a mini-sub that has been put through a miniaturization process making you and the sub only 8 microns long! (Ever see the movie “Inner Space”?) You have been injected into the femoral vein of a healthy female. The alert just came out that a bacterium is invading the lower lobe of the right lung!! You are to pilot your sub to the site of the “invasion” and do a live report on what you see. 1.Trace your path from the right femoral vein to the lower lobe of the right lung via the right pulmonary artery: Rules of the Road: A.You may never go the wrong way down a “one-way street” B.You are not allowed to “create” new roads C.You may choose any possible route Describe all major structures you pass by or through, just like a tour guide would do (but you don’t need to indicate every “side road”). 2.Now that you’ve arrived at the lung, describe the structures you see, and narrate how the body combats the invading bacterium using the knowledge you have gained in the first 4 units. Address both specific and nonspecific immunity and the cells that are involved in each process. 3.Once you have documented the “Battle of the Lung,” cross the alveolar membrane, and trace your route out of the body through the nose. Assignment Instructions: Write a 3-5 page informative essay (including separate title and reference pages) that answers the questions posed in the assignment. The paper must be 1000-1200 words. Your work should include a viewpoint and purpose, be written in Standard American English and demonstrate excellent content, organization, style and mechanics. Your communication should be highly ordered, logical and unified. Your paper should be double spaced, with 1-inch margins, and be a minimum of 3-5 pages long in addition to a cover page and reference page. Use a font such as Times New Roman, with a font size no larger than 12 point. Correct grammar and punctuation are required. Include a separate title page that has the following information centered on the page: •Title of Paper •Your Name •Date The paper you submit must be your own work. If you borrow ideas from printed sources or from people you have spoken to or heard speak, be certain to cite the sources of those ideas, even when paraphrasing. Include separate cover and reference pages that is formatted as per APA guidelines. At least two professional references (other than your textbook) must be included in your paper. Medical dictionaries and encyclopedias are not to be included as one of the two minimum references. For information in formatting per APA guidelines.
 

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The Fantastic Voyage-Anatomy-with complete references-for bkeyondra special.
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  • Posted on Apr. 18, 2012 at 04:02:04AM
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educare
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A:
Preview: ... ns along with the blood from superior vena cava we rush into the right ventricle. The right ventricle has a rough inner surface covered by small muscles that support the valve. The right ventricle has one more opening into the pulmonary artery. The right ventricle contracts in order to push the blood into the pulmonary trunk to reach lungs. Again at the pulmonary trunk opening there is a semilunar valve which opens during ventricular systole. During ventricular systole we shall enter the pulmonary trunk. The pulmonary trunk divides into right and left pulmonary arteries. The right pulmonary artery divides into several branches as per the lobe of the lung. Further down, through the branches we reach the right lower lobe. 2)      Battle with the bacterium:  Here we are at the right lower lobe of the lung. The pulmonary artery that we travelled through has divided into many small branches to form a capillary bed on the alveoli. This capillaries join together distally to form pulmonary vein. There is exchange of gases at alveoli and oxygen is carried into these capillaries thus to the pulmonary vein. Let us now see the structure of alveolus. Alveolus is the terminal balloon like structure present at end of the airway. The alveolus is covered by a thin membrane which is formed by pulmonary epithelium, capillary epithelium and their fused basement membranes. The inner side of alveolus is covered by a film of surfactant. These structures all together help in exchange of gases across the alveolus. The lung tissue is exposed to many pathogens either by respiratory way or by blood. To fight these bacteria lung has specific defense mechanisms. The defense mechanisms of lung can be Specific or Non Specific. The non-specific mechanisms comprise of the mechanical barrier by cilia in the large airways. The cilia beat in a way to stop microorganisms reaching the alveoli. Macrophages are found in alveoli and interstitium. These macrophages help fighting bacteria by their function of antigen p ...

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