Inflammation and Allergies CFU

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Indicate whether each structure is a molecule or a cell. *

5 points

Molecule

Cell

Macrophage

Mast

Cytokine

Antigen

Histamine

After a vaccine, it is common to develop redness, swelling and tenderness at the injection site. This is an example of: *

1 point

Acute inflamation

Chronic inflamation

Here is a micrograph of a mast cell. What are all the dark black circles within the cell? *

1 point

Vesicles containing antigens that the cell has engulfed via endocytosis

Vesicles containing histamines that the cell has engulfed via endocytosis

Vesicles containing cytokine that the cell will release when stimulated

Vesicles containing histamine that the cell will release when stimulated

As part of the inflammatory response, blood vessels dilate. This means they: *

1 point

narrow to carry more blood to the site of infection

widen to carry more blood to the site of infection

narrow to carry less blood to the site of infection

widen to carry less blood to the site of infection

What molecule triggers the dilation of blood vessels? *

1 point

histamine

antigen

cytokine

pyrogen

In addition to dilating, blood vessels become more "leaky" during acute inflammation. What is the result of this process? *

1 point

macrophages can move from the blood vessels into the damaged tissue

warming of this tissue

swelling of the tissue

reddening of the tissue

Required

What type of cell is shown in the middle of the video, engulfing and digesting bacteria? *

1 point

B cell

T cell

Mast cell

Phagocytic white blood cell (AKA macrophage)

What is indicated by the label X? *

1 point

Cytokine

Macrophage

Histamine

Prostaglandin

Allergies are triggered when ______ cells secrete ______ after exposure to a harmless substance. *

1 point

macrophages; cytokine

mast cells; histamine

mast cells; cytokine

macrophages; histamine

Match the pharmaceutical with the mode of action *

2 points

Blocks histamine release from mast cells

Blocks histamine receptors

Blocks prostaglandin release from the hypothalamus

Blocks prostaglandin receptors

Benadryl

Tylenol

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