The cold temperature will cause vasoconstriction, which means constriction of the blood vessels. Ncbi
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Effect of cold on the blood vessel wall. ... (1) On exposure to cold there is a marked increase in the affinity of the postjunctional alpha-adrenoceptors for norepinephrine. This results in a powerful constriction of the blood vessels and a cessation of blood flow to the distal tissue.
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