Answer :
The given statement Vasoconstriction or constriction or dermal blood vessels would be greater at 97.5 degrees farenheit than at 98.4 degrees farenheit is false because regulation of blood flow to the skin is an important mechanism for maintaining body temperature homeostasis.
In general , lower temperature of 97.5 degrees Fahrenheit, there would be a greater need to conserve heat, so vasoconstriction or constriction of dermal blood vessels would be greater. on the other hand , at a higher temperature of 98.4 degrees Fahrenheit, there would be less need to conserve heat, so vasoconstriction or constriction of dermal blood vessels would be expected to be lesser.
Also, This vasoconstriction is mediated by the sympathetic nervous system, which releases norepinephrine to act on alpha-adrenergic receptors in the blood vessels, causing them to constrict.
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