Podcast
Questions and Answers
What is one function of activated complement proteins?
What is one function of activated complement proteins?
Histamine reduces vascular permeability and smooth muscle contraction in the lungs.
Histamine reduces vascular permeability and smooth muscle contraction in the lungs.
False
Name two strategies used by the innate immune system to respond to infection.
Name two strategies used by the innate immune system to respond to infection.
Inflammation and fever.
Lysozymes, found in tears and saliva, are known to __________ cells.
Lysozymes, found in tears and saliva, are known to __________ cells.
Signup and view all the answers
Match the following surface chemicals with their functions:
Match the following surface chemicals with their functions:
Signup and view all the answers
What is the primary effect of paracetamol on fever?
What is the primary effect of paracetamol on fever?
Signup and view all the answers
Fever can help leucocytes function better.
Fever can help leucocytes function better.
Signup and view all the answers
What type of proteins are involved in the complement system?
What type of proteins are involved in the complement system?
Signup and view all the answers
Natural killer cells identify self-cells that lack _____ to target infected or cancerous cells.
Natural killer cells identify self-cells that lack _____ to target infected or cancerous cells.
Signup and view all the answers
Match the following components with their roles or characteristics:
Match the following components with their roles or characteristics:
Signup and view all the answers
Which of the following cells are considered part of the non-specific immune response?
Which of the following cells are considered part of the non-specific immune response?
Signup and view all the answers
Complement proteins are functional and active as soon as they are in circulation.
Complement proteins are functional and active as soon as they are in circulation.
Signup and view all the answers
What triggers phagocytosis in phagocytes?
What triggers phagocytosis in phagocytes?
Signup and view all the answers
Which of the following best describes kinins?
Which of the following best describes kinins?
Signup and view all the answers
Interferon is produced primarily by neutrophils to enhance virus production.
Interferon is produced primarily by neutrophils to enhance virus production.
Signup and view all the answers
What type of immune response is primarily mediated by T lymphocytes?
What type of immune response is primarily mediated by T lymphocytes?
Signup and view all the answers
Pyrogens are chemicals released by ______ that stimulate fever production.
Pyrogens are chemicals released by ______ that stimulate fever production.
Signup and view all the answers
Match the following components of the immune system with their primary functions:
Match the following components of the immune system with their primary functions:
Signup and view all the answers
Which statement about humoral and cell-mediated responses is true?
Which statement about humoral and cell-mediated responses is true?
Signup and view all the answers
The acquired immune response is generalized and acts quickly.
The acquired immune response is generalized and acts quickly.
Signup and view all the answers
In which part of the body do T lymphocytes mature?
In which part of the body do T lymphocytes mature?
Signup and view all the answers
What is one function of the skin in the immune system?
What is one function of the skin in the immune system?
Signup and view all the answers
The acquired immune system is present from birth and is fast-acting.
The acquired immune system is present from birth and is fast-acting.
Signup and view all the answers
What are the four cardinal signs of inflammation?
What are the four cardinal signs of inflammation?
Signup and view all the answers
The body's temperature is regulated by the ______, which resets the set point during fever.
The body's temperature is regulated by the ______, which resets the set point during fever.
Signup and view all the answers
Match the following components with their roles in the immune system:
Match the following components with their roles in the immune system:
Signup and view all the answers
What is one of the roles of natural killer cells in the innate immune response?
What is one of the roles of natural killer cells in the innate immune response?
Signup and view all the answers
What type of medication is often required to prevent organ rejection?
What type of medication is often required to prevent organ rejection?
Signup and view all the answers
Fever is caused by the release of leukotrienes.
Fever is caused by the release of leukotrienes.
Signup and view all the answers
Study Notes
Immune System Overview
- The immune system is a complex system that defends the body against infection and disease.
- It consists of two main parts: innate immunity and adaptive immunity.
Innate Immunity
- Present from birth
- Provides a rapid, non-specific response to pathogens.
- Includes physical barriers (e.g., skin, mucous membranes) and chemical barriers (e.g., enzymes, acids).
- Contains cellular components, such as phagocytes (macrophages, neutrophils), natural killer (NK) cells, and the complement system.
- Trigger an inflammatory response to infection.
- Cardinal signs of inflammation: heat, redness, swelling, and pain.
- Chemicals like histamine, kinins, interferons, prostaglandins, leukotrienes, and pyrogens play a role in this system.
- Fever is also an innate immune response to pathogens. It raises body temperature to make some pathogens less effective.
Adaptive Immunity
- Developed over time.
- Specific response to particular pathogens.
- Involves lymphocytes, recognizing antigens with a specific receptor.
- Two types: humoral (antibody-mediated) and cell-mediated.
- Humoral Immunity is mediated by B-lymphocytes producing antibodies that target pathogens.
- Cell-mediated immunity is mediated by T-lymphocytes that attack infected cells directly, using cytotoxic cells..
Function of Immunity
- Protects the body.
- Protects against microbes including bacteria, viruses, parasites, fungi and toxins
- It is crucial for survival
Autoimmune Diseases
- Diseases where the immune system attacks the body's own tissues.
- Examples: rheumatoid arthritis
Organ Transplants
- Risk of rejection due to the immune system recognizing the organ as foreign.
- Immunosuppressive drugs needed.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on the functions of the immune system, including the roles of activated complement proteins and innate immune responses. This quiz covers key concepts such as phagocytosis, fever, and the characteristics of immune cells. Challenge your understanding of both specific and non-specific immune mechanisms.
