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  • 1. JKitchen_HS120_unit4Assignment 1 AJourney and Battle for Health Jennifer Kitchen HS130-01 Unit 4 Assignment Kaplan University October 2, 2011
  • 2. JKitchen_HS120_unit4Assignment 2 Welcome to the Biological News Network Hello, this is Jenni Kitchen reporting for the Biological News Network. The alert justcame out that a bacterium is invading the inferiorlobe in the right lungof our star runner, IrorNeirbo. We need her to run in the upcoming meet, so we cannot have this infection turning intosomething more severe, like pneumonia. We are going inside to see what is going on and howher body is going to fight this infection. “How?” you may ask. Well, you see this machinebehind me? This is the Miniaturization Machine and will make me and this pill-shapedsubmarine into a mini-me and mini-sub. So, let me get set-up inside the sub. I am now inside and ready to be miniaturized. In order for this to work I must cutcommunications for a few moments… … Okay, I am back and the sub and I are now a mere 8microns long. One micron, also known as a micrometer, is one-millionth of a meter. This makesus comparable to the size of red blood cells and able to fit in a syringe. We also should becomparable to the size of the invading bacterium (University of Wisconsin, 2008). This is muchtoo small for any person to see with the naked eye but you should be able to see me on theMagnification Screen. Now, on to the next segment of this broadcast, the injection, with Dr. Nnyl Nehctik of theAssociation for Pathological Research.
  • 3. JKitchen_HS120_unit4Assignment 3 Into the Blood Stream Dr. Nehctik has now sucked me and the sub up into a syringe and is ready to inject usinto Jane Doe. Iror is ready and so am I. Let’s go! Wow! I have entered the right femoral vein, in the inner thigh, of Iror Neirbo. I amtraveling along with the Leukocytes since we have an infection to defend against. Nobody iscertain how this infection was started, except that some kind of bacterium has gotten into thelower lobe of the right lung, in this wonderfully healthy woman. We have the Lymphocytes, aswell as the Phagocytes; Neutrophils, Eosinophils and Monocytes, traveling beside us in thisjourney to the site of this invasion. I have heard there is some inflammation, so the Basophils arecoming along(Thibodeau& Patton, 2008).All the soldiers are on the way to battle this invadingforce of bacteria! Through the Heart We are now entering the spot where the common femoral vein merges into the iliac vein.We are now headed for the inferior vena cava. All looks well so far, Iror definitely has someclear veins. We are now entering the inferior vena cava. We are going into the right atrium andthrough the tricuspid valve to the right ventricle. The pulmonary semilunar valve is opening andhere go into the pulmonary trunk to the right pulmonary artery(Thibodeau & Patton, 2008).Wow, now, that was quite a ride! Immunity and theBattle of the Lung We are now entering the right lung. We are traveling down the pulmonary arteriole.This will bring us down along the right primary bronchus where we will come to the alveolar
  • 4. JKitchen_HS120_unit4Assignment 4duct… ...But what do I see here? Is that Streptococcus Pneumonia? These bacteria like to getcomfy in the alveoli and create a fluid build-up. Good thing we got here so quick they have nothad time to settle in to good. The soldiers are advancing on these bacteria. The Phagocytes;Neutrophils, Eosinophils and Monocytes, are all ready to consume these bad guys. Look at themgo! They just envelope these bacteria like they are tonight’s gourmet fare. For those of you that know little about the immune function of the body here is arundown. We are born with some immunity, called nonspecific or innate immunity. Thisimmunity is given by the skin, tears, mucous, and, of course, these phagocytes of the WhiteBlood Cell Regime. Then as we grow from childhood and come into contact with germs,bacteria, viruses we get what is called specific immunity, also known as adaptive immunity.This may come from getting a cold and our cells fighting the bacteria or virus. Our cells keep arecord of the battle and remember the invader. This makes it so we have a defense in fightingthe same guys twice. We also may get inoculations where the virus is injected into us and thebody fights off these “intentional” invaders, keep a record, and remember. This causes immunityand we do not catch whatever this vaccine contained(Thibodeau & Patton, 2008). The body istruly amazing! This battle is amazing! We are in the blood still and cannot go further until this battle isover with. The Neutrophils and the Monocytes are migrating into the tissues infected with thisStreptococcus Pneumonia to ingest and digest them where they have gotten comfortable.Antibodies are attaching to antigens. B-cells are maturing as the battle goes on. They arelearning what their destiny will become. Memory cells or plasma cell? New antibodies areformed (Thibodeau & Patton, 2008)! Wow, I didn’t expect to see such a grand display ofcellular function!
  • 5. JKitchen_HS120_unit4Assignment 5 The battle is coming to an end. I do not see any more of the Streptococcus Pneumonia. Ithink they got them all. Oh, yes, we just got the signal that all is clear. We may now moveforward into the Alveoli. Leaving the Body We will travel with the Carbon Dioxide that has been traveling with us for we mustdiffuse along with this gas. We are in the capillaries of the lung still and must move through amembrane. This happens as we build up concentration on this side; the pressure should help usdiffuse into the Alveoli. I think we are ready to move… …The diaphragm and intercostalmuscles are making the lungs contract. The hemoglobin is helping the carbon dioxide diffuseout of the blood stream and into the alveoli. Here we go with the carbon dioxide. We arepushing out of the alveoli. Now we go up through the bronchi, up the throat, and out of the nose(online Schools, 2011). What a ride! Now that I am out (good thing we had a safety net with holes smaller than 8 microns,coffee filters are awesome) I must get resized again. I will be right back with you in a fewmoments after Dr. Nehctik gets me back to my original size… A few Words on Homeostasis Thank you for joining us for this broadcast. Iror is back in homeostasis, anotherbiological disaster diverted. Now let me explain a little about homeostasis. The body does it’sbest to stay in a relative state of balance internally. This relative balance is imperative to usfunctioning properly. If this infection had gotten a good hold Iror would be down for a whileand would have to sit out of the next track meet. As a star runner she takes excellent care to eatwell and to get enough physical exercise and rest. This promotes homeostasis. When we take
  • 6. JKitchen_HS120_unit4Assignment 6care of ourselves we help the body do its part in keeping us balanced internally. So, remember,the tiny cells that make up our bodies need proper nutrition, proper activity, and proper rest inorder to protect us from invasions of bacteria. The battle you seen today is going on anytime wecontract a virus, bacteria, or toxin. This battle took energy and Iror will still need to get someextra rest and let her body recuperate from this event. So, remember, take care of yourselvesbecause next time this bacteria could be out for you. Until next time, this is Jenni Kitchen signing off. Thank you for joining us here at theBiological News Network for this great journey through a star runner.
  • 7. JKitchen_HS120_unit4Assignment 7ReferencesThibodeau, G. and Patton, K., (2008). Structure and Function of the Body. St. Louis: Mosby Elsevier.Online Schools, (2011). How Does the Respiratory System Work? Retrieved from http://www.onlineschools.org/how-does/how-does-the-respiratory-system-work/ .University of Wisconsin, (2008). Exploring the Nanoworld : Intro to Nano: What is the nanoscale?: Size and Scale. Retrieved from http://mrsec.wisc.edu/Edetc/nanoscale/index.html .