Which chemicals do mast cells and basophils release when stimulated in an allergic reaction?
A) interferons
B) complement proteins
C) histamines, leukotrienes, and other chemicals that cause inflammation
D) heparin
E) IgE antibodies
Answer: C
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This skin infection is also called furuncles.
A. Tinea B. Impetigo C. Warts D. Boils
The paired ________ form(s) the lateral walls of the nasal cavity, and function(s) in slowing airflow and deflecting inhaled air toward the olfactory receptors.
A) inferior nasal conchae B) middle nasal conchae C) superior nasal conchae D) vomer E) palatine bones
An intact skin surface is the best way the body can defend itself against pathogens.?
Indicate whether the statement is true or false
In general, as an artery's diameter decreases, the artery walls show
A. an increase in relative amounts of smooth muscle and elastic fibers and a decrease in endothelium. B. a decrease in the relative amount of smooth muscle and an increase in the relative amount of elastic fibers. C. a decrease in both smooth muscle and elastic fibers and an increase in areolar connective tissue. D. an increase in the relative amount of smooth muscle and a decrease in the relative amount of elastic fibers.