White Blood Cells and Their Functions
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White Blood Cells and Their Functions

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Questions and Answers

B Lymphocytes produce Antibodies which make the antigen recognizable to the immune system so it can be destroyed.

True

Interleukins, TNFα, prostaglandins, and bradykinin are all types of Granulocytes.

False

TH Cells are T cytotoxic cells that are primarily responsible for directly killing infected cells.

False

The immune system can differentiate between self and non-self antigens.

<p>True</p> Signup and view all the answers

Both Non-specific (Innate) and Specific (Adaptive) immunity are types of acquired immunity.

<p>False</p> Signup and view all the answers

Opsonization refers to the process of making an antigen easily recognizable to the immune system.

<p>True</p> Signup and view all the answers

NK Cells are specifically designed to target and destroy bacterial pathogens.

<p>False</p> Signup and view all the answers

A state of resistance against infection from a particular pathogen is known as immunity.

<p>True</p> Signup and view all the answers

Agranulocytes include neutrophils, eosinophils, and basophils.

<p>False</p> Signup and view all the answers

The inflammatory response is a key event in both Innate and Adaptive immunity.

<p>True</p> Signup and view all the answers

Study Notes

White Blood Cells

  • White blood cells are also known as leukocytes
  • There are 5,000-9,000 white blood cells per microliter of blood
  • White blood cells are divided into two categories: Granulocytes and Agranulocytes

Granulocytes

  • Granulocytes are a type of white blood cell that contains granules in their cytoplasm
  • Granules contain enzymes and other chemicals that help the body fight infection
  • Include: Neutrophils, eosinophils, basophils

Agranulocytes

  • Agranulocytes are white blood cells that do not contain granules in their cytoplasm
  • Include: Lymphocytes, monocytes

Lymphocytes

  • Lymphocytes are a type of agranulocyte that plays a key role in the immune response
  • Include: Natural Killer (NK) cells, B Cells, and T Cells
  • NK cells are cytotoxic cells that kill virus-infected cells and tumor cells
  • B cells produce antibodies
  • Antibodies bind to antigens, marking them for destruction by the immune system
  • This process is known as Opsonisation
  • T cells include T helper (TH) cells, T cytotoxic (TC) cells, and T suppressor (TS) cells
  • TH cells help activate other immune cells
  • TC cells kill infected or cancerous cells
  • TS cells suppress the immune response, preventing it from attacking healthy cells

The Immune System

  • The Immune System provides two basic types of immunity: Non-specific (Innate) and Specific (Adaptive)
    • Non-specific (Innate) immunity protects the body from a broad range of pathogens
    • Specific (Adaptive) immunity provides a more targeted defense against specific pathogens

Non-Specific/Innate Immunity

  • Innate immunity is the first line of defense against infection
  • The body's innate defenses include:
    • Skin
    • Mucous membranes
    • Phagocytic cells
    • Natural killer cells
    • Inflammation
    • Fever
    • Complement system

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Description

Explore the fascinating world of white blood cells, also known as leukocytes. This quiz covers the different types of white blood cells, including Granulocytes and Agranulocytes, and their roles in the immune response. Test your knowledge on how these cells help the body fight infections.

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