Which of the following types of abnormal contractions of skeletal muscle may be caused by holding a position for a prolonged period?
a) spasm
b) fasciculation
c) tremor
d) fibrillation
e) cramp
e
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Which of the following units is unique to three-dimensional Cartesian coordinate systems (i.e. do not exist in 2-D systems)?
A. x B. y C. z D. all of the above are unique to 3-D systems
Which of the following is not accomplished by interferon?
a. It directly breaks down viral messenger RNA and inhibits protein synthesis. b. It enhances macrophage phagocytic activity. c. It stimulates antibody production. d. It stimulates the activity of natural killer cells. e. It slows cell division and suppresses tumor growth.
What effect would lesions in the cervical ganglia and upper spinal cord that interrupt sympathetic innervation of the head have?
A. Increased blood supply to the digestive tract B. Decreased rate and force of the heart beat C. Decreased production of epinephrine and norepinephrine D. Decreased upper limb perspiration and inability to produce "goose bumps" E. Constriction of the pupil and decreased facial perspiration
Which of the following processes is NOT associated with gastrointestinal function?
A. digestion B. filtration C. secretion D. motility E. absorption