Different White Blood Cells and their Functions

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most abundant circulating white blood cells that release chemicals to kill bacteria.

Neutrophils

Granular white blood cells with enzymes that specifically target parasitic worms.

Eosinophils

Explain the role of dendritic cells in the immune system.

Process and alert the adaptive immune system.

What do basophils and mast cells have in common in terms of function?

Both contain histamines that cause inflammation. Signup and view all the answers

What is the main responsibility of lymphocytes in the immune system?

Responsible for specific immunities. Signup and view all the answers

What is the function of natural killer cells in the immune system?

Do not attack microbes directly. Signup and view all the answers

What is the role of lysozyme in the innate immune system?

An enzyme that helps break down bacterial cell walls Signup and view all the answers

Describe the function of mucus in the immune system.

Acts as a protective barrier to block bacteria from sticking to inner epithelial cells Signup and view all the answers

Where are lysozyme, IgA, and IgG secreted in the eyes?

Lacrimal glands (tears) Signup and view all the answers

What are the sources of waxy secretions (cerumen) in the ears?

Sebaceous glands Signup and view all the answers

Which white blood cells fight off infections and are found in the lymph nodes?

Lymphocytes Signup and view all the answers

What is the function of macrophages in the immune system?

Patrol and ingest microorganisms through phagocytosis Signup and view all the answers

What is the regulatory protein that can cause neurons in the hypothalamus to raise the body's temperature in the form of fever?

Interleukin-1 Signup and view all the answers

Which type of antibodies is found in mucosal areas like the gut, respiratory tract, and urogenital tract, preventing colonization by pathogens?

IgA (Immunoglobulin alpha) Signup and view all the answers

What is the function of IgE (Immunoglobulin epsilon) in the immune response?

It binds to allergens and triggers histamine release from mast cells and basophils. Signup and view all the answers

Which antibody is the only one capable of crossing the placenta to provide passive immunity to the fetus?

IgG (Immunoglobulin gamma) Signup and view all the answers

What is the main function of IgM (Immunoglobulin mu) in the immune system?

It provides the majority of antibody-based immunity against invading pathogens. Signup and view all the answers

How do antibodies prevent a virus or toxic protein from binding to their target?

Neutralization Signup and view all the answers