Chapter 24 Flashcards
What is the primary function of the immune system?
To protect the body against pathogens and foreign substances.
True or False: The immune system can only recognize bacteria.
False
Fill in the blank: The two main types of immunity are __________ and __________.
innate, adaptive
What type of white blood cell is primarily responsible for the adaptive immune response?
Lymphocytes
Which cells are known as phagocytes?
Macrophages and neutrophils
What is the role of antibodies?
To neutralize pathogens and facilitate their destruction.
True or False: Vaccination is a method of inducing active immunity.
True
What is the difference between active and passive immunity?
Active immunity is developed through exposure to pathogens or vaccination, while passive immunity is acquired through antibodies from another source.
Which part of the immune system includes the thymus and bone marrow?
The primary lymphoid organs
Multiple Choice: Which of the following is NOT a type of T cell? A) Helper T cells B) Cytotoxic T cells C) Memory B cells
C) Memory B cells
What is an antigen?
A substance that can trigger an immune response.
True or False: The skin is considered a part of the innate immune system.
True
Fill in the blank: __________ are proteins produced by B cells that specifically target antigens.
Antibodies
What is the function of the complement system?
To enhance the ability of antibodies and phagocytic cells to clear microbes and damaged cells.
Multiple Choice: Which type of immunity is provided by maternal antibodies? A) Active immunity B) Passive immunity C) Both A and B
B) Passive immunity
What is the role of dendritic cells in the immune response?
To present antigens to T cells and initiate the adaptive immune response.
True or False: All immune responses are immediate and do not require prior exposure to the pathogen.
False
Fill in the blank: __________ are substances that stimulate the production of antibodies.
Vaccines
What is the primary purpose of inflammation?
To localize and eliminate the source of injury or infection.
Multiple Choice: Which immune cell is primarily involved in the allergic response? A) Neutrophils B) Mast cells C) B cells
B) Mast cells
What is an autoimmune disease?
A condition where the immune system mistakenly attacks the body’s own tissues.
True or False: Immunodeficiency disorders result in an overactive immune response.
False
Fill in the blank: __________ is the process by which white blood cells leave the bloodstream to reach sites of infection.
Diapedesis
What does the term ‘memory’ refer to in the immune system?
The ability of the immune system to remember past infections and respond more effectively upon re-exposure.