25 Questions
What is the primary function of lymph nodes in the lymphatic system?
To filter and inspect lymph by lymphocytes
Which type of immune cell is responsible for producing antibodies?
B lymphocytes
What is the name of the larger duct that drains lymph from the rest of the body into the subclavian vein?
Thoracic duct
Which type of immune cell is most effective against bacterial infections?
Neutrophils
Where are lymph tissues more prevalent in the body?
In areas exposed to the outside environment
What is the function of IgE antibodies?
Triggering the release of histamine and other inflammatory molecules
How do B cells rapidly mutate to create new sequences?
Somatic hypermutation
What is the primary function of Natural killer cells?
Innate immunity
Where are T-cells 'trained'?
Thymus
How do the variety of antibodies arise from a limited number of genes?
Somatic recombination and somatic hypermutation
What is the primary response of the adaptive immune system to a pathogen?
Attacking and destroying foreign cells or diseased host cells
What is the main function of T-cells in cellular immunity?
Directly attacking and destroying foreign cells or diseased host cells
What is the characteristic of immunological memory in adaptive immunity?
A stronger response to a pathogen after initial exposure
What type of immunity involves the direct destruction of foreign cells or diseased host cells?
Cellular immunity
What is the role of B-cells in humoral immunity?
Producing antibodies to tag pathogens for destruction
What type of disease agents are effectively targeted by Adaptive Immunity?
Extracellular viruses, bacteria, yeasts, and protozoans
What is the result of natural active production of antibodies?
Antibodies are produced as a result of infection
What is the function of the C region of an antibody?
Determines the mechanism of the antibody's action
What is the term for the part of the antibody that combines to form the antigen-binding site?
V region
What is the term for antibodies produced by another person or animal and received through blood plasma or serum?
Artificial passive immunity
What is the primary mechanism of Type 1 Hypersensitivity reactions?
IgE mediated reaction
Which type of hypersensitivity reaction is responsible for autoimmune diseases such as acute glomerulonephritis and systemic lupus erythematosus?
Type 3 Hypersensitivity
What is the characteristic time frame for the onset of Type 4 Hypersensitivity reactions?
12-72 hours after exposure
What is the primary consequence of the immune system not distinguishing between self and foreign antigens?
Autoimmune diseases
What is the name of the severe and immediate reaction that can be fatal?
Anaphylaxis
Test your knowledge on the lymphatic system, including the structure and function of lymphatic vessels, lymph nodes, and the circulation of lymph. Learn how the right lymphatic duct and thoracic duct drain into the internal jugular and subclavian veins, respectively.
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