The three basic groups of viruses based on morphology include
A. enveloped viruses, DNA viruses, and non enveloped viruses.
B. non enveloped viruses, RNA viruses, and bacteriophages.
C. enveloped viruses, non enveloped viruses, and complex viruses.
D. helical viruses, round viruses, and enveloped viruses.
Answer: C
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Some of the structural components of Staphylococcus act as virulence factors. Which of the following components inhibits chemotaxis and phagocytosis, inhibits proliferation of mononuclear cells?
A. Capsule B. Peptidoglycan C. Protein A D. Teichoic acid E. Slime layer
A group of medications that induce stimulation of the central nervous system are _______________.
Fill in the blank(s) with the appropriate word(s).
Margination refers to
A) the adherence of phagocytes to microorganisms. B) the chemotactic response of phagocytes. C) adherence of phagocytes to the lining of blood vessels. D) dilation of blood vessels. E) the movement of phagocytes through walls of blood vessels.
Which human body system includes lymphatic organs of the lymphatic network, such as the tonsils and lymph notes?
A) nervous B) cardiovascular C) endocrine D) urinary E) immune