What is a synergist?
A. The muscle that produces the most force during an action
B. The muscle that opposes the prime mover
C. A muscle that prevents a bone from moving
D. A muscle that may stabilize a joint or modify direction of movement at the joint
E. A molecule that provides energy for muscle contraction
D. A muscle that may stabilize a joint or modify direction of movement at the joint
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Plasma cells
A. produce antibody molecules. B. produce interferon. C. directly attack antigens. D. increase the volume of the blood plasma.
The quadrants of the abdominopelvic region include all of the following except
A) right upper quadrant (RUQ). B) right lower quadrant (RLQ). C) left upper quadrant (LUQ). D) left lower quadrant (LLQ). E) pelvic quadrant.
Another term for perforation is:
A) fenestration B) inversion C) eversion D) fulguration
The sinoatrial node is the heart's normal pacemaker because
a. it has the fastest natural rate of autorhythmicity. b. it has both sympathetic and parasympathetic innervation. c. it lies in the right atrium. d. activation of K+ channels occurs more rapidly in this region than elsewhere in the heart. e. none of these answers.