The Immune System Flashcards
What is the purpose of the immune system
Fights infection in the body and keep systems house he remembers pathogens to quickly destroy them when they come
What is the purpose of the lymphatic system
Maintain fluid levels and filter fluids for pathogens in the body
Where do you live vessels originate in where did they end up
Originate near the pillories end up in limp notes
What are lymph nodes
Body structures that filter lymph fluid for pathogens
What are pathogens
Any microorganism that can cause harm to the body bacteria fungi virus
What are antigens and how are they important to trigger an immune response
Markers to help the body identify pathogen as for and faster so I can be destroyed
Three physical barriers
Skin respiratory tract digestive track
How does inflammation help during infection
Blood vessels swell and allow more me in sales to get to the infected area
What are phagocytes
Cells that patrol a body and eat any foreign sell it identifies
Three examples of phagocytes
Neutrophils macrophages dendrites sells
Cells with the innate immune system that are not fake sites what do each of them do
Mast cells release histamine causes inflammation basophils release histamine that causes allergic reactions Eosinophils release toxic substances kill parasites natural killer cells destroy host cells taken over by pathogens
What do tonsils do
Contain white blood cells to detect antigens to activate the immune response
What blood cells are made in the bone marrow
White blood cells
Where do you lymphocytes mature
B cells bone marrow T cells thymus gland
Why do we get a fever when we are sick
It raises the body temperature to help kill pathogens and indicate to yourself that you were sick
What are memory cells and how are they important
Cells that remember pathogens in case of reinfection so your body can respond fast and he probably won’t even realize you’re sick
Two main groups white blood cells
Phagocytes and lymphocytes
What are antigen presenting cells
Cells that show a pathogens antigen on their own service to activate other immune cells
Three main classes of T cells what do they do
Helper activate immune cells develop into memory cells help me pathogens cytotoxic produce per foreign to kill body cells infected by viruses memory respond quickly to future secondary infections
Three classes of B cells
Regular antibodies on surface plasma secrete antibodies memory respond quickly to secondary infection
What is a plasma sell
B cells that secrete antibodies into the pod
Primary versus secondary exposure to a pathogen
Primary immune cells have to learn how to recognize the passage and kill it secondary memory cells recognize the pathogen and kill it before it even makes you very sick
How vaccines work
Introduce androgens into the blood to the body can make memory cells for if it hits you hard
Describe her antibiotics work
Provide immediate help fighting off infections your body doesn’t make memory cells
Passive immunity pros and cons
Pro immediate relief con no long-term protection against secondary infection
Active immunity pros and cons
Long-term immunity take a while to activate involves protection of memory cells
Infection by bacteria examples
Pneumonia food poisoning strep throat
Virus infection examples
Cold flu HIV
How does the body target viruses or bacteria in the blood
Antibodies tag bacteria and viruses to flag for phagocytes and prevent from spreading further
How does the body target viruses that infect her body cells
Cytotoxic T cells destroy sales infected by viruses
What are auto immune diseases and the wrist factors of them
Disease is where immune system attacks healthy cells gender ethnicity and western diet a fatty foods
Auto immune disease examples
Rheumatoid arthritis type one diabetes MS IBS
Innate immune response
First non-specific response contains physical barriers inflammation and phagocytosis
Adaptive immune
Immoral and cell mediated responses creates memory cells cytotoxic T cells destroy so I was infected by the virus is B cells can be memory cells and secured antibodies
