How does the human body protect itself from infections?
456067
The skin is the first line of defense. Mucus membranes in the nose and and cilia in the respiratory system also help to trap bacteria and 'sweep' it out of the body. The Immune system patrols the blood and lymph vessels of the body looking for intruders that make it past the first line of defense. Different cells in the immune system have different functions. Some cells (phagocytes) are ingest foreign invaders. Some cells are markers that flag foreign substances for attack by other immune system cells. \nHere's a few sources to help you better understand how the different immune system cells work together to protect the body.
62567
It is a barrier of oil and perspiration, created by the sweat and sebaceous glands of the dermis, that protects the body from infections. We can strip this away by using harsh soaps thus disrupting the pH of the skin.
939816
It helps your body perform at it's best and assists in keeping your immune system healthy.
793311
Immunization, or immunisation, is the process by which an individual is exposed to an agent that is designed to fortify his or her immune system against that agent. The material is known as an immunogen. Immunization is the same as inoculation and vaccination in that inoculation and vaccination use a viable infecting agent like immunization does. Immunization is just the general term for vaccination and such things as what you gain from these process. When the human immune system is exposed to a disease once, it can develop the ability to quickly respond to a subsequent infection. Therefore, by exposing an individual to an immunogen in a controlled way, their body will then be able to protect itself from infection later on in life.\nPlease see the webpages for more details on Immunization.
95329
protection from bacteria\nprotection from water\nhelps to preserve body moisture (keep from dehydrating)\netc.
990633
The lymphatic system is involved with immunological protection for all systems of the body, thus helping all systems to stay in homeostasis:\n\n1. In general: immune cells protect the entire body from attack by pathogens, foreign cells, cancer, etc\n2. excess interstitial fluid and leaked plasma proteins taken from skin too.  Even antibodies found in sweat.\n3. lymph drains excess int. fluid from connective tissue around bone\n4. lymph drains excess int fluid from muscles\n5. lymph can help distribue hormones and drain excess int fluid from endocrin glands\n6. lymph returns excess fluid from capillaries to venopus blood; macrophages destroy old rbcs and remove debris in blood\n7. tonsils, macrophages protect lungs from pathogens; lymph drains excess int fluid from lungs\n8. tonsils and macrophages also protect GI tract from invading pathogens; antibodies in saliva and GI secretions; lacteals in villi absorb dietary lipids and transport them to blood. lymph drains excess int fluid from GI organs\n9. lymph drains excess int fluid from urinary organs; defends agains toxins and pathogins that penetrate urinary tract via urethra\n10. drain excess int fluid from reprod organs; defense against toxins, pathogens entering vagina or penis; antibodies cancross the placenta to provide immuneprotection to developing fetus; antibodies also in colostrum of early milk fed to infant in breastfeeding
759465
Our body is made of cells.  Through the food which we eat, we are providing nutrients to these cells.  So when we fall sick or injure ourselves, the nutrients will kick in and replenish the cells and restore them back to normal. The duration taken to heal thyself depends on the food we take, amount of rest we take and the seriousness of the injury/illness
89200
The type of cells known as WBCs(White Blood Cells) protect the body against infections by either producing antibodies or by engulfing the foreign materials like toxins, bacteria, fungal spores etc. They can also trigger antibody- antigen reaction leading to inflammation. They are of three types:-\n 1. Neutrophills\n 2. Basophills\n 3. Eosinophills\nThey are therefore known as 'soldiers of body'.
679219
When you become sick, your body produces "antibodies". These antibodies fight off the individual pathogens. After these pathogens are destroyed, some of the antibodies remain in your body. If that particular pathogen ever returns, the antibodies will recognize it and attack it before it can manifest itself.
1043081
First of all we all have AIDS\nAIDS stands for - auto-immune deficiency syndrome. When we catch a cold or the flu or any other virus, we are trying to fight off and infection within the body, and that is AIDS.\n \nAIDS within a healthy body is vitality, because the system known as the body has no reason to be sick.\nHowever in a body that is trying to fight off an illness and our system is weakened the auto immune system goes into over drive to heal the body.\n  \nIt's the HIV that kills when in combination with a weakend AIDS system.\n\nAnd what really kills is ignorance to a disease that has no discrimination what so ever. From the innocent babies in Africa, to those who recieved blood transfusions.\n\nMany website on the topic of HIV/AIDS look it up.
865496
All the answers above will HELP you not to get any infections/diseases.  If you live in a sterile environment you may be able to prevent infectious diseases that are passed from one human to another, but there are still diseases that you can develope due to race, genetics and age.  Until they learn how to stop disease through DNA manipulation there is no absolute prevention of a disease.
28997
A happy environment and the proper nutrients.\n\nMicrobes like all life, need the basics.\n\nShelter, in this case a substarte or media to grow. This could be agar in a test tube, or an infected cut on your hand. They need energy. This could be from the sun in the case of an algae or from nutrients found in a medium like blood.\n\nIf they have the basics, bacteria will grow and grow. Thisis why an infection can get out of control. The human body makes a great incubatr for bacteria and if unchecked they will take advantage of it.\n\nEach species is different in the specific needs. Some will like salt water, other will need more electrolytes, others need more protein, so it does matter what species of bacteria you are culturing. In a lab, this is usually done in an agar or medium. This is either a liquid or gel that is packed with certain nutrients and innoculated with the bacteria and incubated for growth.
594968
A vaccine looks like the real thing to our body.\nSo it fools our defense system to start building antibodies for that one germ or virus.\n\nSo when we are infected, our defense is already up and running.
532358
Well, I assume you are talking about the defences of the body. The first line of defence is protective structures that form barriers. The main structure is your skin. Also, there are protective reflexes, such as coughing and sneezing.
159354
The NUMBER ONE way to prevent infectious diseases (and this will be a question on my nursing boards coming up!) is \nPROPER HANDWASHING!!!!\nSanitation has to do with keeping things sanitary or clean.
972437
how do we fight an infection?\nhow do we get energy?\nhow do we absorb nutrients?\nhow do we reproduce?\nhow fast do we grow?\nhow do we see things?\nhow do we hear things?\nhow do we remember things?
1034043
there are many kinds of elements and compounds in human body such as blood circulation, repiratory system,muscular system and productive system etc. for an example the function of the blood circulation is to circulate the blood to the whole body . the blood have a pigmen called hemoglobyn to bring along oxygen to the cell in our body. every cell need an oxygen to live. \n\nfurthemore ,our body is contain by many things such as leucosyte , good bacteria , ions , platlet , enzym , hormon , water , uric acid , vitamins, etc. each of this element have their function.