Immune System Review

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What is the immune system?

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The immune system is the body's defense system that protects against infections and diseases by deploying white blood cells and antibodies.

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What are white blood cells?

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White blood cells are a key component of the immune system that help fight infections by attacking pathogens.

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What role do antibodies play in the immune system?

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Antibodies are proteins produced by white blood cells that specifically target and neutralize pathogens like bacteria and viruses.

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What are pathogens?

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Pathogens are harmful microorganisms, such as bacteria, viruses, fungi, and parasites, that can cause disease.

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How can pathogens enter the body?

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Pathogens can enter the body through cuts, the nose, eyes, and mouth.

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What is the function of the lymphatic system in immunity?

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The lymphatic system helps transport white blood cells and other immune cells throughout the body and filters out pathogens.

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What is the difference between red blood cells and white blood cells?

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Red blood cells carry oxygen to the body's tissues, while white blood cells are involved in fighting infections.

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What happens when you get a cut?

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When you get a cut, white blood cells travel to the site to destroy any bacteria and prevent infection.

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What is the role of skin in the immune system?

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The skin acts as a physical barrier to prevent pathogens from entering the body.

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What is an example of a non-part of the immune system?

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Insulin is not part of the immune system; it is a hormone that regulates blood sugar.