12 Questions
What is the main function of the skin as a protective barrier?
Forms a barrier with a bacteria-hostile environment due to low pH
What is the primary function of mucus produced by the mucous membranes?
To trap particles and push them back up
How do the innate and adaptive immune systems differ in their response to a threat?
The innate system is fast and recognizes patterns, while the adaptive system is slow and specific
What is the relationship between the innate and adaptive immune systems?
The innate system defeats the threat, and the adaptive system completes the fight
What is the role of the gut's natural bacterial flora in providing protection?
They limit foreign microbial growth
Where do the cells of the immune system, such as leukocytes, originate from?
They develop from the pluripotent (haemopoietic) stem cell that differentiates into myeloid or lymphoid stem cells
Which type of immune cells recognize very specific sequences?
B-lymphocytes
What type of cells are activated into cytotoxic T cells that kill infected cells?
NK cells
Which immune system component uses natural antibodies and NK cells?
Complement system
In the immune system, what types of cells can be activated into T helper cells promoting B cell maturation?
Dendritic cells
What happens to T and B cells reacting to self-antigens during maturation?
They are sorted out
Which type of interactions occur between immune cells, where more interactions imply greater strength?
Noncovalent interactions
Test your knowledge on the protective barriers of the immunological apparatus, including the skin, sweat glands, mucous membranes, and other components. Learn about how these barriers create a hostile environment for bacteria and other pathogens.
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