Identity confirmation of Yersinia pestis by advanced laboratory techniques can be carried out in almost any hospital clinical laboratory.
Answer the following statement true (T) or false (F)
False
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Prostaglandins cause a variety of effects, including
a. mucus secretion and constriction of smooth muscles in the capillaries. b. mucous secretion and constriction of smooth muscles in the bronchioles. c. histamine production and heat production. d. histamine production and dilation of smooth muscles in the bronchioles. e. heparin production and dilation of smooth muscles in the capillaries.
What are the structures labeled “C” in the accompanying figure?
a. plasmodesmata b. basement membranes c. tight junctions d. gap junctions e. adhering junctions
Exoenzymes play which following main roles in the disease process?
a. dissolve the host defensive barriers b. inflict damage on tissue c. synthesize bacterial DNA for binary fission d. increase the amount of systemic inflammation
Fever is caused by
A) increased blood flow to the brain. B) the release of histamine by damaged cells. C) the effect of pyrogens on the hypothalamus. D) decreased white blood cell count in the bloodstream.