Besieged castle: HUMAN BODY Fact that even though we try to live in a clean environment, we share this space with many microorganisms. If you have the opportunity to observe the space's where you sit today with a microscope, you will immediately see the millions of organisms that live with you. In this situation, the human body is like a "besieged castle". Needless to say, the castle, which is surrounded by an infinite number of enemies, must be protected by means of a very full and regular. Man was created with perfect protection she needs. Therefore, humans are not entirely defenseless against these enemies. Peacekeepers "micro" in the body we never leave us, they fought for us in many front line. The cells that want to attack the body first must fight their way through the front body. Although ka- dang forefront of this weak, the enemy is not easy to go through. The first defense is to face the enemy of our skin. Protective Shield Body: Leather Skin, which covers the entire body like a sheath, filled with amazing properties. Ability to repair and renew itself, water can not penetrate, although many tiny pores on its surface, but it serves throw water through perspiration. The structure is extremely flexible, allowing free movement, but it is thick enough so it does not tear easily. Ability to protect the body from heat, cold, and sunlight effects. All of them are just a few features of the skin that are specially created for men. Here, we are dealing with specific properties of this extraordinary wrapping paper: its ability to protect the body from disease-causing microorganisms. If the body is considered a castle besieged by the enemy, we can refer to the skin as a strong castle walls. The main function of skin protection is realized through a layer of dead cells that are part of the outer skin. Each new cells produced by cell division moves from the inside of the skin leading to the outer surface. While doing this, the liquid element (cytoplasm) of the cell turns into a protein known as keratin. During this process, the cell dies. The newly formed keratin compound has a structure that is very hard and therefore can not be decomposed by digestive enzymes. Thus, invaders such as bacteria and fungi will not be able to get something to rip off from the outer layer of skin. Moreover, dead cells that contain keratin that constantly fall from the skin surface. The new cells from below for replacing the obsolete cells form a barrier that can not be transparent in that area. Organisms that live in the skin of another protective function of the skin. A group of harmless microbes living on the skin, and have adapted to acidic medium. Because of foods obtained from the remaining ingredients in keratin of skin, microbes attack all kinds of foreign bodies to protect their feeding. Leather, as the host of microbes, like a supplementary that provide external support to the troops in the human body. Respiratory protection in One of the road the enemy to enter our body is the respiratory tract. Hundreds of kinds of microbes, which are in the air we breathe, trying to enter the body through this route. However, they were not aware of the barrier in the nose created to fight them. Special secretion in the nasal mucous hold and sweep around 80-90% of microorganisms that gain entry to the respiratory system directly or through dust particles or other substances. In addition, the fuzz (cilia) on the surface of airway cells upright, causing the flow to bring foreign particles to the throat and then swallowed and destroyed by acid in the stomach. Reflex coughing and sneezing facilitate this function. Microbes that are able to overcome these hurdles and reach the alveoli (lung, bronchus, and gingiva) will be ingested by phagocytes. After this phase, phagocytes move with the microbes they have ingested to be finally discharged from the body in different ways. Every time you breathe, as you do now, a war is raging in the border gates of your body. A process which does not be aware of. The guard at the gates fight the enemy to the death to protect your health. Protection in the Digestive System Another means for microbes to enter the body is our food. However, the guards of our body, knowing the methods that are used by the microbes, waiting for them at the end of the area where food, the stomach. They always have a surprise coming to microbes, the stomach acid. This acid is a surprise that did not please for the microbes that have overcome obstacles and reached the stomach. The majority of microbes, if not all of it is said, was defeated by this acid. Some microbes may have survived the acid trap because they do not really come into contact with stomach acid, or kare-na has staying power. However, these microbes back to further conflicts with other guards who were on their way. Now, another surprise was in front of them: digestive enzymes to expect-silkan in the small intestine. This time, they can not get away as easily. As we have seen, the human body has created a special guard, which protects the human body in every stage of microbial attack. Then there are a number of important questions that arise from this study. Who established that microbes living outside would try to enter the body through food, what is the route through which food, how the microbes will be destroyed at the final destination, where they would go if they overcame this obstacle? And what if they were faced with a stronger enemy like that? What does it all there was the cell body, which is never out of the body, and therefore no opportunity to learn the chemical make-up of the microbes out, and more than that, did not receive any training in chemistry? Of course not. Only God, who created the external world, and ma-right in this world, and the body will need your food, as well as sys-tem for digesting food, being able to create a system of defense. Another Method: Crush Enemy by Another Enemy Many other microorganisms that live in the human body do not harm us. What organism that lives without harms us, and what purpose they live in our bodies? This group of microorganisms, which are gathered in certain parts of the body, called the body's normal flora. They are not harmful and even have some profitable to the human body. These microorganisms provide external support to the forces of defense against microbes. They are beneficial for the body to prevent foreign microbes from settling in the body, due to the inclusion of other microbes are a threat to their own residence. Because they do not want to be displaced by the invaders, they determined his opponent. We can imagine these microorganisms as "mercenaries" fighting for our bodies. They place their lives trying to protect their own interests. In doing that they complement the armed forces in our bodies. How to "mercenary" is settled in our bodies? While in the womb, the human embryo has never met with the enemy. After birth, the baby's contact with the environment, and many microbes are introduced to the child through food intake and through the respiratory tract. Some microbes die right away, while others are discharged before the chance to settle in the body. Some, however, settle in various parts of the body such as the skin, the folds of the skin, mouth, nose, eyes, upper respiratory tract, gastrointestinal tract, and genitalia. These microbes form a permanent colony on the site and is the body's normal flora. Who are Our Micro Enemies? Our micro enemies, by contrast, is a microorganism, which is not part of our bodies, but sometimes enters our bodies, and ultimately stimulate the defense forces in it. Not every foreign cells entering the body is treated as an enemy. Foreign material always enters our bodies when we eat, drink, or take drugs. But the body does not fight it. In order for the defense cells assume a foreign substance as an enemy, there are certain conditions to be considered, such as molecular size, rate of eli-minasinya of the body, and a way of entering the body. Bacterium Among so many enemies micro bacteria reputation. Bak-teri, which enters the body in many ways, waging a fierce war in the body. This war, which sometimes end up with a severe illness, explicitly reveal hidden strengths and capabilities in an organism the size of a few microns (a micron is one thousandth of a millimeter). Recent research shows that bacteria have an extraordinary resistance to even the most severe conditions and difficult. Bacteria are found in appearance as spores are resistant to very high temperatures and drought for a long time. This is why it is difficult to destroy certain microbes. Virus The human body is similar to a very high value diamonds. Diamonds stored in a safe, getting the most intensive care and protection. Some organisms that try to invade the body like thieves. One of the most famous criminals and most importantly is a virus. This organism, whose existence we became aware after the discovery of the electron microscope, is a structure that is too simple and too small to be considered as a single cell. The virus, which vary in size from 0.1 to 0.280 microns, are not classed as being hidup.2 Although categorized as living beings, no doubt has a special ability as virus-ana other living creatures. Close inspection of the virus life will make this reality more je-as. Viruses are parasites who always depend on living things. That is, he will not survive if they do not dwell on the cells of plants, animals, or humans, and eating his food and energy. Viruses do not have a system that will allow them to live alone. As if aware of this, they deftly slip into the cell, and after occupying the cell, with the same shrewdness transform these cells into the "factory of manufacturing viruses" that produce twin. The plan, which was developed by the virus to the cell occupied extraordinarily sophisticated and smart. Perta-ma of all, the virus must determine whether the cell is right for them or not. He must be very cautious and careful in this decision, since the slightest mistake can lead to death. To avoid this, it uses special receptors to make sure whether the cell is sufficient or not. The next important thing is to be careful to put myself inside the cell. The virus confuses the cells with the use of tactics and avoid being detected. This is how it happened: a new cell transports the viral DNA into the nucleus. Thinking that it produces protein, the cells began to replicate this new DNA. DNA virus hides itself in such a way that the cells accidentally became its own enemy and the factory producing the virus that will eventually destroy it. It is difficult for cells to recognize the arrangement-derivative as the attackers. Virus puts himself in a cell so well that it almost becomes a part of it. After the multiplication process is complete, the virus and other new viruses leave the cell to start the same process in other cells. During the process, depending on the type of virus and the cell, the virus can kill the host cell, destroying it, change it, or simply do nothing. The question of how the cell, which operates under the control mechanisms are monitored very strictly, so that could be fooled into virus factories remain unanswered. Very surprising that the virus, which has a highly specialized structure, but not classified as living beings, could act by-increasingly smart, think, and plan effective strategies. The secret of this phenomenon lies in the existence of the Creator, which creates organisms with the ability he has. Characteristic of the virus are perfectly designed to allow her to use a system that works in the cell. It is clear that the power that created the virus is also very aware of a very complex principle within the cell. This power is the power of God, who created the virus and the cell he occupied, as He created the entire universe. With a very small structures, the virus can trigger and sometimes even cause the death of the human body, which is millions of times greater than its own size. He was specially created by God to remind man of his weakness. Picture Text Invasive bacterial influenza in nasal epithelium (left). The bacteria on the teeth that just brushed (right). Monster Miskroskopis "Dust mites" (pictured above) is just one of the millions of organisms that live with humans but can not be seen with the naked eye. The larvae of the parasite are entering human skin (left picture). These organisms are trying to reach the blood vessels through the skin, and dwelt in these vessels to proliferate. He used extraordinary tactics to escape the body's defense forces, such as camouflage themselves with material that he tore from the host cell. The views on Skin Deep Above is a picture of the cross-section of skin. Drops of sweat secreted from the skin play the various roles in the body. In addition to lower the body temperature, they provide more nutrients for the bacteria and fungi that live on the skin surface, and produce acidic waste materials such as lactic acids that help lower the PH (kea-saman) skin. Acidic medium on the skin surface creates a hostile environment for harmful bacteria that are looking for a place to stay. The left image is a close-out of the entrance of the sweat glands. Here, too, you will find bacteria like elsewhere in the skin. The first response of the organism's defense against dangerous invaders is an own-provement rapid appearance of skin tissue after injury. When the wound ruptures the skin, immune cells immediately to the injured area to fight foreign cells and remove the remains of the affected tissue. Then, some other defense cells to increase production of fibrin, a protein that rapidly cover the wound with fibrous tissue. This picture is of fibrin that has spread over a few red blood cells. This image, which was magnified 5900 times, showing tracheal cells (blue). They use their glands (yellow) to secrete a substance that traps the particles in the air. In this picture, you can see the macrophages located in the lung tissue. They eliminate the dust particles in the air that we breathe. This image, which was magnified 865 times, showing aperture glands of stomach acid (entry) in the mucus layer. There are hundreds of bacteria in the world. In the picture above you can see only a few of them. Pictures of the bacteria at the end of the needle, is enlarged. A virus that is modifying the structure so as not to be recognized by the immune system. (Rhinovirus 14) Ebola virus (top left), Influenza virus (bottom left), Flu Virus (right).
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