The primary goal of the immune response is
A. destruction or inactivation of pathogens and foreign material.
B. maintenance of the proper ionic balance between lymph and blood.
C. stimulation of mitotic activity in order to replace cells damaged by infection.
D. reduction of the number of circulating memory lymphocytes.
E. removal of antibodies from lymph and lymphatic organs.
A
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On axial CT images, the ____________________ lobe of the liver is immediately anterior to, and wraps around, the inferior vena cava (IVC).
Fill in the blank(s) with the appropriate word(s).
Which of the following is the correct sequence of events in phagocytosis shown in the figure?
a) pseudopods surround particle > phagosome formed > fusion of lysosome and phagosome > digestion by lysosomal enzymes > residual body formed b) phagosome formed > pseudopods surround particle > fusion of lysosome and phagosome > digestion by lysosomal enzymes > residual body formed c) phagosome formed > pseudopods surround particle > fusion of lysosome and phagosome > residual body formed > digestion by lysosomal enzymes d) residual body formed > phagosome formed > pseudopods surround particle > fusion of lysosome and phagosome > digestion by lysosomal enzymes e) fusion of lysosome and phagosome > residual body formed > phagosome formed > pseudopods surround particle > digestion by lysosomal enzymes
The initial change in heart rate at the onset of exercise is due to _________.
A) sympathetic stimulation. B) the withdrawal of parasympathetic inhibition. C) overfilling of the ventricles. D) stretching of the cardiac muscle fibers in response to increased venous return.
Vocal folds that prevent foreign objects from entering the glottis are known as the ________.
Fill in the blank(s) with the appropriate word(s).