102 3/12/13 What is Childhood Vaccination? When germs enter the body‚ the immune system recognizes them as foreign substances (antigens). The immune system then produces the right antibodies to fight the antigens. Vaccines contain weakened or dead versions of the antigens that cause diseases. This means that the antigens cannot produce the signs or symptoms of the disease‚ but they do stimulate the immune system to create antibodies. These antibodies help protect you if you are exposed to disease
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cellular respiration and anabolism is the construction of proteins. Complete set of chemical reactions that occur in living cells. Basis of life Anabolism catabolism 4. Define Homeostasis The maintenance of a stable equilibrium in a biological system that opposes external or internal disturbances. 5. Define the two feedback mechanisms and give examples of each mechanism Negative feedback reduces or suppresses a change (like blood glucose levels/ a thermometer); Positive feedback promotes
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time period is 7–10 days. Commonly‚ the further the injury from the central nervous system‚ the longer the incubation
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AS Psychology Unit 2: Stress-illness and The Immune System Notes The immune system refers to the mechanism in the body that provides a defence against infections‚ e.g. bacteria‚ viruses‚ parasites and toxins. The immune system fights off invaders that cause disease (antigens). The cells in the system are leukocytes (white blood cells) called phagocytes and lymphocytes. Phagocytes are the first line of defence‚ providing a general barrier against antigens. Leukocytes are more focused and are
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this happens‚ it is known as an infection which in turn make people ill. Our body uses its immune system to fight of the infection that has began spreading in the body. Vaccines are used to help our immune system develop an immunity by imitating the infection. This means that there is a small amount of the bacteria or virus introduced to the body but it does not make the person ill. This causes the immune system to create t-lymphocyttes and b-lymphocytes‚ white blood cells that attack cells that have
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injected with a vaccine‚ it imitates a certain disease‚ which causes the immune system to respond like it would to the actual disease (“For Parents”). This allows the body to become familiar with the disease to help fight it in the future. Before birth‚ the neonatal immune system has the ability to respond to large quantities of foreign antigens (Offit). Antigens are the bacterial parts of vaccines that allow the immune system to fight off future infections by building up antibodies (Haelle). Neonates
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or weakened pathogens into the body. The immune system uses the pathogens to create immune cells that kill the disease-causing pathogens when they attack in the future. Receiving a vaccine for disease will cause the person to be actively immune‚ protects the person and their loved ones‚ and can assist in wiping out a communicable disease altogether. Active immunity is exposure to antigens from pathogens entering the body. This results in the immune system producing its own response. Vaccines are
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As part of indoctrination into modern Western civilization‚ we have been propagandized that in order to ward off infectious and dangerous diseases‚ we need to be vaccinated. Our lowly immune systems‚ it is claimed‚ are no match for the most virulent diseases and deadly bacteria. Without the discovery of vaccines‚ we would be left vulnerable and lucky to survive horrible plagues and diseases. Or would we? There is amazing little proof that the effectiveness of vaccines in their current form is even
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1492 suddenly collided with 12‚000 years of American isolation from Eurasian. The European were not affected by the disease as much as the Native American because they had a robust immune system due to the fact that they have been the caretakers of domesticated animals for thousands of years‚ and had somewhat grown immune to the common diseases that accompanied the domestication. Natives American on the other hand had very limited exposure to the spread of the diseases‚ so it was easy for the to catch
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their immune system and to give them nutrients that they otherwise wouldn’t get. Formula Feeding makes it easier on the mother to be able to do other things while still giving nutrients to the baby. Both of these ways can help improve the relationship between mother and baby. The only difference of these two types is the opinion of the mother on which one she prefers to use. Breastfeeding Pros Breastfeeding can be very healthy for a baby because breast milk protects the baby’s immune system‚ it is
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