40 Questions
Which type of immunity offers a tailored response to specific pathogens?
Adaptive Immunity
What is the main function of phagocytes?
Ingest and destroy pathogens using enzymes
Which type of cells are involved in defense against parasitic infections?
Eosinophils
Which cells constitute over 90% of granulocytes?
Neutrophils
What is the function of basophils and mast cells?
Release toxic substances to destroy parasites
Which type of immunity lacks lasting or protective immunity?
Limited Longevity
What is the main function of the complement cascade?
Detect bacteria and facilitate elimination
Which cells initiate the adaptive immune response by facilitating antigen presentation?
Macrophages
Which type of immunity does not require previous antigen exposure?
Innate Immunity
What is the function of dendritic cells in the immune system?
Facilitate antigen presentation
Which of the following is a characteristic of the innate immune system?
It provides the first line of defense
What are some physical/anatomic barriers of the innate immune system?
Skin, eyelashes, cilia
Which of the following is a biochemical factor of the innate immune system?
Lysozyme, lactic acid, pH
What are some soluble (inflammatory) factors of the innate immune system?
Complements, lactoferrin, transferrin
Which of the following is a cellular factor of the innate immune system?
Macrophages, neutrophils
What is a key feature of innate immunity?
It provides the first line of defense
What is the total activity of the cellular system concerned with mechanisms of preserving the integrity of the external and internal environment of the animal called?
Immunity
What is the functional component of the immune system that can generate an enormous variety of cells and molecules capable of recognizing and eliminating foreign invaders?
Adaptive immunity
Which of the following is a characteristic of adaptive immunity?
It is acquired after birth
What are some primary lymphoid organs?
Thymus, bone marrow
Which of the following is NOT a physical/anatomic barrier of the innate immune system?
Gastric acid
Which of the following is a biochemical factor of the innate immune system?
Lysozyme
Which cells are involved in non-specific cellular responses of the innate immune system?
Neutrophils
Which of the following is a key feature of innate immunity?
Consistently active
Which of the following is an example of a soluble (inflammatory) factor of the innate immune system?
Complements
What is the main function of dendritic cells in the immune system?
Presentation of antigens to T cells
Which of the following is a primary lymphoid organ?
Thymus
What is the main function of the complement cascade?
Neutralization of toxins
Which of the following is a functional component of the immune system that can generate an enormous variety of cells and molecules capable of recognizing and eliminating foreign invaders?
Adaptive immunity
Which type of immunity offers lasting or protective immunity?
Adaptive immunity
Which type of immunity learns to recognize and remember pathogens it encounters?
Adaptive immunity
Which cells are involved in defense against parasitic infections?
Eosinophils
Which cells are the most abundant type of white blood cells?
Neutrophils
Which cells can ingest and destroy pathogens using enzymes?
Phagocytes
Which cells can signal for more phagocytes to come and help?
Phagocytes
Which cells are involved in initiating the adaptive immune response by facilitating antigen presentation?
Dendritic cells
Which cells are poorly phagocytic but can degranulate promptly in the presence of appropriate stimuli?
Eosinophils
Which cells are involved in defense against bacterial infections?
Neutrophils
Which cells are involved in the complement cascade activation to detect bacteria and facilitate the elimination of deceased cells or immune complexes?
Macrophages
Which cells are antigen-presenting cells (APCs) in the immune system?
Dendritic cells
Test your knowledge of the immune system and its key features with this quiz by Dr. Nnamdi Okereke. Explore the differences between the innate and adaptive immune response, learn about the physical and chemical barriers against infection, and understand the roles of primary and secondary lymphoid organs. Challenge yourself to identify different cells of the immune system.
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