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Immune System 8

immune system

What are some ways to care for your immune system? -eat healthy - personal hygiene - don't share body fluids - keep house clean - vaccinations up to date - rest and exercise
What is the definition of the immunes system? The system that defends the body against infection and disease causing substances, such as bacteria, viruses and cancer cells
What is definition of antigen? A non living invader in the body
What is pathogen? an organism or substance that can cause a disease.
What are 4 ways to transmit infectious diseases? - direct contact - indirect contact - water/food - animal bites
what is your first line of defence? skin and lining of internal organs (gastric juice & cilia)
What is the second line of defence? Immune response. Success depends on your body being able to tell which cells are from your body and which are not.
What is the Innate Immune response? general and non-specific. Causes Inflammation. Usually used against things such as the common cold.
what is inflammation? It's caused by the flow of cells, fluid and dissolved substances (swelling and redness). creates phagocytes to help fight pathogens and infection.
what are phagocytes? White blood cells sometimes created by inflammation.
what is the acquired immune response? very specific attack on antigen or pathogen. Both ways to send out this response include B-cells and T-cells (white blood cells) The first part is the B-cell. Second is the T-cell. This process can take up to one week.
What is the Innate Immune response? quick and general way to fight pathogens. Usually fights bacteria and some viruses. First action is inflammation. Contributes to active immunity.
what is a virus? non-living particles that reproduce when in a host cell. They are usually disease causing.
what is a disease? any disturbance in the body.
what is active immunity? When your body can remember what antibodies to use for a pathogen that has attacked it before.
what are antibodies? used to fight antigens. They cover the antigen, preventing it from creating further infections.
what is a B-cell? first part of the acquired immune response. B-cells locate antigens and produce antibodies.
what is a T-cell? second part of the acquired immune response. Tow types of T-cells. Helper and killer.
what is a killer T-cell? Works alone to directly attack pathogen.
what is a helper T-cell? Is called on by B-cell when antigen or pathogen is there.
what are allergies? a sensitivity to a certain substance. Cause histamines.
what is an allergen anything that causes an allergic reaction. (pollen, cats, dust, food etc.)
what are histamines? a chemical released into your body when you have an injury or need to fight something like allergens.
what is anaphylactic shock? when some people are highly allergic to an allergen exposure to them can cause anaphylactic shock. Can cause swelling, breathing troubles and occasionally death.
what are vaccines? a weakened type of pathogen that is injected into your body to prevent you from getting that disease is a serious form.
what is a vaccination? when a vaccine is injected into your body using usually a needle and in liquid form.
who was Montagu? she made the observation to prevent any serious cause of smallpox. To do so you would make a small cut (deep enough) in the child's arm. You would then place the puss of patient with mild smallpox and place it on the cut.
who was Jenner? he resurfaced Montagu's observation by discovering that if you had had to cowpox you would not get to smallpox.
what are AIDS? Acquired Immunodeficiency syndrome. caused bu HIV. No known cure.
what is HIV? dangerous pathogen that attacks helper T-cells/ Because of the body can not protect itself against less harmful diseases. HIV is passed on from person to person by sex and drug needles. HIV always changes form.
Created by: bracefaces