The ________, shown at letter I in the figure, controls the amount of light that enters the eye.
pupil
The size of the pupil regulates the amount of light that enters the eye.
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The main area that controls all other nervous system function is the:
A) Somatic nervous system. B) Sympathetic nervous system. C) Central nervous system. D) Parasympathetic nervous system.
What is an advantage of steel?
A. Relatively inexpensive B. Strongest of structural materials C. Does not melt when exposed to heat D. Does not rust when exposed to air and moisture
Which of the following is not a potential effect of ongoing stress?
A. Increased risk for diabetes B. High blood pressure C. Elevated risk for developing asthma D. Increased risk for developing cancer E. Elevated resistance to colds
A drain can enhance wound healing by
a. preventing infection. b. increasing wound dead space. c. increasing seroma formation. d. preventing tissue devitalization.