29 Questions
Where do B cells develop?
Red bone marrow
Which immune cells contain cell killing granules?
Natural Killer cells
Where do T cells mature?
Thymus
What is the function of chemokines secreted by T cells?
Attracting other immune cells or destroying infected cells
What is the role of secondary lymphoid organs mentioned in the text?
Filtering lymph
What is the main function of the lymphatic system?
Filtering pathogens from the blood
How does lymph move through the lymphatic vessels?
Movement due to muscle contraction and body movements
Which areas of the body lack lymph vessels?
Bone marrow and central nervous system (CNS)
What is the main function of B cells in the immune system?
Produce plasma cells that bind to antigens
Which type of immune response is rapid but non-specific?
Innate immune response
What is the main function of lymph nodes in the immune system?
Coordinate adaptive immunity
Why is an antibody ineffective against a virus inside a cell?
Antibodies cannot penetrate the cell membrane.
Which of the following is NOT a mechanism used by pathogens to evade the immune response?
Releasing histamine to attract immune cells.
Which of the following is an inherited immunodeficiency disorder?
Severe Combined Immunodeficiency Disease (SCID)
What is the primary treatment for Severe Combined Immunodeficiency Disease (SCID)?
Bone marrow transplant
Which of the following is a characteristic of the influenza virus that contributes to its ability to evade the immune system?
It undergoes frequent mutations.
What is seroconversion in the context of HIV/AIDS?
The development of antibodies against HIV.
How does Immediate (Type 1) hypersensitivity differ from Delayed (Type 4) hypersensitivity?
Immediate hypersensitivity involves rapid reactions, while Delayed hypersensitivity takes 24-72 hours for symptoms to appear.
Why might autoimmune diseases be less common in countries with high infectious disease rates?
Possibly due to the immune system being occupied with fighting infectious diseases.
What must match for a successful organ transplant, according to the text?
Mismatched MHC alleles
In what way can a healthy immune system impact cancer?
Controlling some cancers
What is the main challenge in developing a vaccine for a virus that mutates often?
Keeping up with the rapid mutation of the virus
Why does infiltration of T cells in the first week after an organ transplant suggest a likely failure?
The immune response against T cell infiltration leads to rejection.
What is the function of lymph nodes?
Removing debris and pathogens from lymph
Which organ is known as the 'filter of the blood'?
Spleen
What is the role of mucosa-associated lymphoid tissue (MALT)?
Protecting against pathogens in the GI tract and other areas
Why do tonsils swell during an infection?
As a result of an active immune response to infection
What are lymphoid nodules?
Dense collections of lymphocytes without a fibrous capsule
What is the function of afferent lymphatic vessels entering the lymph node?
Delivering lymph into the node
Test your knowledge on the anatomy of the lymphatic and immune systems, including the functions of immune system cells and the role of lymphatic vessels. Explore topics such as lymph nodes, interstitial fluid, and the absorption of dietary lipids.
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