Stress and Immune Cell Activity
Brief or acute stress can temporarily enhance the activity of the immune system. This effect involves multiple components of the immune system, including key cell types.
Immune Cell Roles
- Macrophages: These cells act as the immune system's first responders, engulfing pathogens and cellular debris. Brief stress can increase their phagocytic activity and antigen-presenting capabilities.
- T cells: These lymphocytes are crucial for cell-mediated immunity. They help coordinate the immune response and fight infected cells. Acute stress can boost T cell proliferation and their ability to attack targets.
- B cells: Responsible for producing antibodies to neutralize pathogens, B cells are central to humoral immunity. Studies suggest brief stress can enhance B cell antibody production.
The enhancement of activity across macrophages, T cells, and B cells collectively demonstrates how brief stress can bolster immune system function.
Important Questions from Immune System
Consider the following statements -
1. This type of Immunoglobulin is a type of antibody representing approximately 75% of serum antibodies in humans.
2. It is present in most abundant quantity in the blood circulation
Which type of immunoglobulin is being talked about?
Allergy and anaphylaxis are due to -
Cells that release histamine and other vasoactive substances in response to allergens are -
Which is not a part of lymphatic system?
Bacterial infections are generally divided into two broad classes: intracellular and extracellular bacterial infections. Given below are some of the properties which are applicable for bacterial infections.
A. Humoral immune response is the main protective response against extracellular bacteria.
B. Innate immunity is not effective against intracellular bacterial pathogens.
C. Bacterial endotoxins do not induce an innate immune response.
D. Intracellular bacterial infections generally induce a cell-mediated immune response resulting in secretion of cytokines which activate macrophages.
Which one of the following combination of statements is correct?
