In order to protect yourself against infectious diseases, it is recommended that you keep a distance of how many feet away from people?
A) 1
B) 2
C) 3
D) 4
Answer: C
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Anaphylatoxins stimulate a localized inflammatory response, which includes mast-cell degranulation, vasodilation, and recruitment of lymphocytes and phagocytic cells. What is the purpose of this localized immune response?
A. Mast cells contain histamine, which triggers vasodilation, which will increase blood flow to an infected area so that higher numbers of white blood cells will be recruited. B. Serum proteins contain specific and nonspecific immune effector molecules to bind up and neutralize the invading pathogen and any toxins. C. Vasodilation locally increases the temperate of an infected area so that bacterial proteins become denatured. D. Vasodilation increases tenderness at the site of infection and causes edema (swelling) to that the host is careful not to overuse or tax the infected area. E. All of the above.
When a teacher uses a left-to-right sweep to glance at an entire class in just a few seconds to assess how all the children are working, this observation technique is called ________.
Fill in the blank(s) with the appropriate word(s).
Where does deep vein thrombosis most frequently occur??
A) legs B) arms C) neck
The small arterial branches are the
A) ventricles. B) venules. C) atria. D) arterioles.