The immune system Flashcards
(24 cards)
What is the primary function of the immune system?
To defend the body against pathogens and foreign substances.
True or False: White blood cells are a key component of the immune system.
True
Fill in the blank: The immune response is activated when the body detects a __________.
pathogen
What are antigens?
Substances that can trigger an immune response.
True or False: Vaccines work by introducing a harmless form of a pathogen to stimulate an immune response.
True
Fill in the blank: The __________ is a group of proteins that help to destroy pathogens in the immune response.
complement system
What is the function of memory cells in the immune system?
To remember past infections and provide a faster response upon re-exposure to the same pathogen.
What is the role of antibodies in the immune response?
To bind to antigens and help neutralize or destroy pathogens.
Fill in the blank: The __________ response is the body’s immediate reaction to a pathogen.
innate
True or False: Immunization can create herd immunity in a population.
True
Fill in the blank: __________ are proteins that help to identify and neutralize foreign objects like bacteria and viruses.
Antibodies
Multiple choice: Which type of immunity is provided by antibodies passed from mother to child? A) Active B) Passive
B) Passive
True or False: The immune system can sometimes mistakenly attack the body’s own cells, leading to autoimmune diseases.
True
What is the primary purpose of a vaccine?
To stimulate the immune system to produce an adaptive immune response without causing the disease.
True or False: Allergies are caused by an overreaction of the immune system to harmless substances.
True
What is the significance of the blood-brain barrier in relation to the immune system?
It protects the brain from pathogens and immune responses that could cause damage.
HARDER QUESTIONS OR NOT STUDIED
What is the role of cytokines in the immune response?
To act as signaling molecules that mediate and regulate immunity and inflammation.
Fill in the blank: The __________ is an organ that plays an important role in the development of T cells.
thymus
What are the two main types of adaptive immunity?
Humoral immunity and cell-mediated immunity.
Multiple choice: Which immune response is specific to particular pathogens? A) Innate response B) Adaptive response
B) Adaptive response
What is the function of the spleen in the immune system?
To filter blood and help produce and store white blood cells.
What is the difference between active and passive immunity?
Active immunity is developed through exposure to a pathogen, while passive immunity is acquired from another source, such as maternal antibodies.
Multiple choice: Which of the following is NOT a type of white blood cell? A) Neutrophils B) Erythrocytes C) Lymphocytes
B) Erythrocytes
