Microbiology

Learn the toughest concepts covered in Microbiology with step-by-step video tutorials and practice problems by world-class tutors.

19. Innate Immunity

Steps of the Inflammatory Response

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1) Tissue Damage & Infection

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2) Release of Inflammatory Mediators & Other Cytokines

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Problem

In the inflammatory response, which immune cells are the first to begin the immune response to an injury?

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3) Vasodilation

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Which of the following is needed for vasodilation and diapedesis to occur at an infection site?

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4) Removal of Invading Microbes

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Problem

Which immune cells are responsible for removing dead or damaged host material at an injury site?

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Problem

Match the scenario to the step of the inflammatory response it belongs in.

1. Tissue Damage & Infection.
2. Release of Inflammatory Mediators & Cytokines.
3. Vasodilation and Diapedesis.
4. Removal of Invading Microbes and Damaged Tissue.

_____ Local mast cells release histamines and cytokines when encountering an invading microbe.
_____ Neutrophils destroy the invading microbes found in the injury site.
_____ Peter accidentally cuts his finger with a kitchen knife.
_____ Fluid full of plasma, proteins and immune cells exits the blood stream at injury site.
_____ Macrophages remove the epidermis and dermis cells damaged by the injury.
_____ The blood vessels in the region of the injury dilate releasing immune cells and proteins.
_____ Pathogenic bacteria enter the host’s body.

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The attraction of leukocytes to the area on inflammation is referred to as

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Damaging Effects of the Inflammatory Response

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Which of the following statements about the inflammatory response is false?

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Problem

Rheumatoid arthritis is an autoimmune disease, meaning that the body’s immune system attacks the body’s joint tissues. Why are many autoimmune diseases associated with chronic inflammation?

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Which of the following is FALSE in regards to inflammation?