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NREMT EMT

Category - Medical

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Pete decided to go camping during December in Canada all by himself. Halfway to the campsite, his car ran out of gas, so he decided to try walking. In what way will his body try to protect itself from the cold?

Vasoconstriction
Piloerection
Sympathetic stimulation
All of the above.

Explanation

Answer: D - Vasoconstriction, piloerection, and sympathetic stimulation are mechanisms of protection from the cold. Piloerection is the body attempting to produce heat by shivering Vasoconstriction conserves heat by shunting blood to the core, and sympathetic stimulation increases heart rate and metabolic processes, thereby producing heat.

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