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Immune system
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Give two examples of first-defense barriers (physical or chemical)
skin, saliva, mucous, cilia, etc
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What are the four main types of pathogens?
Viruses, Bacteria, Protozoa, and Fungi
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what type of immunity do vaccines provide?
active acquired immunity
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Which diseases are caused by pathogens, and usually contagious?
Infectious diseases
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What is immunodeficiency?
Inability to produce an adequate immune response because of an insufficiency or absence of antibodies, immune cells, or both
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Which system produces immune cells?
skeletal system
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What do B cells do?
Produce antibodies
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What type of organism causes measles?
A virus
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What is allergy?
An allergy is where your body reacts to something that's normally harmless like pollen, dust or animal fur.
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What is herd immunity?
A situation in which a disease cannot spread through a group of people because enough of them are immune usually because of having been vaccinated
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Two types of antigen-presenting cells
dendritic cells and macrophages
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It is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat
virus
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They are white blood cells of the innate immune system, that destroy infected and diseased cells, like cancer cells.
Natural killer cells
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Two types of immunity
innate and acquired
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What are pathogens?
Any microrganisms, such as a virus or a bacterium that can cause disease
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Which doctor carried out the first vaccination?
Edward Jenner
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When you are immune to a disease, what does that mean?
You will not contract the disease
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There are two types of immunodeficiency
Congenital and adquired
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When these cells sense an infection, they activate other immune cells to fight it.
Helper T cell
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Which white blood cells are the antibody factories?
B cells
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Define autoimmunity
It is the condition that occurs when our immune system attacks its own tissues and cells.
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Bacterial infections can be treated with
antibiotics
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What initiates an immune response?
An antigen
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What does the immune system do?
It provides a general defense against harmful microrganisms and substances
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Define vaccine
A preparation that is used to stimulate the body's immune response against diseases
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Name one cell that belongs to the specific (adaptive) immune system
Memory T-cells, Memory B-cells, lymphocyte Th, Tc, lymphocyte B
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Which immune system are you born with?
Innate
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Which diseases are caused by the environment or a genetic disorder, and not contagious?
Non-Infectious Diseases
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