What is the primary function of the immune system?
To protect the body from harmful pathogens
What are the two main types of immune responses?
Innate and adaptive
What are antibodies?
Proteins produced by the immune system to neutralize pathogens
What is inflammation?
A response triggered by the immune system to protect against infection or injury
What is an antigen?
A substance that triggers an immune response
What is the role of T cells in the immune system?
To identify and destroy infected cells
What is the function of B cells in the immune system?
To produce antibodies
What is the purpose of vaccination?
To stimulate the immune system and provide immunity to specific diseases
What are lymphocytes?
A type of white blood cell involved in the immune response
How does the immune system recognize self from non-self?
Through the presence of unique molecules on the surface of cells
What is immunodeficiency?
A weakened or impaired immune system
What is an autoimmune disease?
A condition where the immune system mistakenly attacks healthy cells
What is the function of natural killer cells?
To destroy cancerous cells and virus-infected cells
What is the difference between active and passive immunity?
Active immunity is acquired through exposure to pathogens or vaccines, while passive immunity is acquired through the transfer of antibodies from another source
What is the role of the spleen in the immune system?
To filter and store blood, as well as produce certain types of immune cells