39 Questions
What is the primary function of the lymphatic system?
To remove pathogens and excess fluid from the body
How does lymph fluid move through the lymphatic system?
Through muscle contractions and breathing
What is the function of lymph nodes?
To act as a staging area for an immune response
What is the name given to the lymphatic vessels that carry dietary lipids and fat-soluble vitamins from the intestines?
Lacteals
What happens if the lymphatic system becomes blocked?
Lymphedema can develop
Which of the following is NOT one of the three phases of the immune system mentioned in the text?
Humoral
Which of the following cells are involved in the adaptive immune response?
Lymphocytes
What is the primary function of plasma cells?
Secretion of antibodies
Which of the following is NOT a primary lymphoid organ?
Lymph nodes
What is the function of the thymus gland?
Maturation of T cells
Which of the following is NOT a barrier to pathogens?
Lymph nodes
What is the primary function of phagocytes?
Ingestion and destruction of pathogens
Which of the following is NOT a type of phagocyte?
Plasma cell
What is the primary function of Natural Killer (NK) cells?
Destruction of infected cells
Which of the following is NOT a secondary lymphoid organ?
Thymus gland
What is the primary function of cytokines in the immune response?
Short-distance communication between cells
What is the main characteristic of Type 1 hypersensitivity reaction?
It is an immediate hypersensitivity reaction due to IgE binding to mast cells.
How does HIV weaken the immune system?
By attacking the helper T cells at their CD4 receptor.
What is the condition where the mother's antibodies attack the fetus due to a positive Rh factor in the second child?
Erythroblastosis fetalis
What is the role of cytokines in Type 4 hypersensitivity reactions?
To bring many macrophages and cytotoxic T cells upon second exposure to an antigen.
How do cancer cells evade the immune system?
By mutating rapidly and splitting.
What is an example of a disease that can result from Type 3 hypersensitivity?
Tuberculosis (TB)
What is the primary function of regulatory T cells?
To suppress other T cells and the immune response
Which of the following statements about antibodies is correct?
Antibodies cause agglutination, which is the clumping or bunching together of antigens
What is the process of getting rid of potentially harmful B cells called?
Central tolerance
What is the primary function of IgM antibodies?
To be the first antibody produced during a primary immune response
Which type of immunity involves the transfer of antibodies from one individual to another?
Passive immunity
What is the primary mechanism by which cytotoxic T cells eliminate viruses?
By directly killing infected cells
Which of the following is a mechanism used by pathogens to evade the immune system?
All of the above
What is the term used to describe the reciprocal relationship between virus and antibody levels in the blood?
Seroconversion
Which of the following is the most severe form of immunodeficiency disorder?
Severe Combined Immunodeficiency Disease (SCID)
What is the process called when an antibody changes from one type to another, such as from IgM to IgG?
Class switching
What is the purpose of opsonization in the immune response?
To bring phagocytes to the area via chemotaxis
Which of the following is NOT a characteristic of inflammation?
Numbness
What is the goal of inflammation in the body?
To kill pathogens and clean up debris
Which cells slow down a pathogen for the adaptive immune response to develop?
T cells
What happens during clonal expansion of T cells?
Rapid mitosis to increase their numbers
Which cells release cytokines to draw macrophages to an antigen?
Helper T cells (Th1)
What is the main function of cytotoxic T cells in the immune response?
To destroy infected cells
Test your knowledge on the lymphatic system and how it contributes to the body's immune response. Learn about lymphedema, lymph nodes, and the role of lymphatic vessels in maintaining a healthy immune system.
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