Immunity: Chapter 05 Activation and Effector Actions of T Cells

Which of the following cytokines are typically secreted by T_H2 cells?

	a)	IL-13
	b)	TGF-β
	c)	IL-4
	d)	IL-5
CorrectWrong: a, c and d are correct.Your answer has been saved.

Which of the following statements are true?

	a)	Macrophages activated by TH2 cells (alternatively activated macrophages) resemble those activated by TH1 cells in having increased microbicidal activity.
	b)	Antigen presentation and costimulatory molecules are upregulated on alternatively activated macrophages.
	c)	Dectin induced on alternatively activated macrophages is thought to contribute to detection of fungal infection.
	d)	Chitinases released from alternatively activated macrophages promote tissue remodeling.
	e)	Alternatively activated macrophages produce antiinflammatory cytokines.
	f)	Mast cells bear Fc receptors that recognize IgA.
	g)	Fc receptors recognizing IgE cause the cells bearing them to release histamine and vasoactive agents.
	h)	IgA is important for preventing damage by toxins produced by pathogens.
	i)	IgA is important for preventing pathogens from invading mucosa.
	j)	IL-4 and IL-13 induce smooth muscle contraction and mucus secretion.
CorrectWrong: b c e g h i and j are trueYour answer has been saved.

Which of the following cells and molecules characteristic of T_H2 responses are specifically protective of epithelial surfaces (skin and mucosa)?

	a)	eosinophils
	b)	mast cells
	c)	IgA
	d)	IgE
CorrectWrong: a, b, c and d are correct.Your answer has been saved.