Describe two ways the skin can help retain heat when it is cold outside
What will be an ideal response?
Goosebumps (hairs that are raised by contraction of the arrector pili muscles) create an insulating space between the air and the skin. Constricting blood vessels in the dermis divert blood away from the body surface so that the air will not cool it.
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Peak physical performance occurs when stress hormones are at their minimum levels
Indicate whether the statement is true or false.
In addition to using appropriate engineered safety devices, NIOSH recommends that health-care workers ____.
A. recap needles before transporting them to the sharps container B. throw sharps into the wastebasket C. attend bloodborne pathogen training every three years D. avoid using needles with hinged shields E. use needles only if no safe alternatives are available