When it is cold, the blood vessels of the skin

Assessment: JAMB UTME - Biology - 1993 Subject: Biology

Question 1 Report

When it is cold, the blood vessels of the skin
Answer Details
When it is cold, the blood vessels of the skin constrict to reduce the amount of blood flowing to the skin. This is a mechanism to conserve heat and maintain the body's internal temperature. When the blood vessels constrict, less blood flows to the skin and more blood is redirected to internal organs, which helps to keep them warm. This is why people may experience a pale, cool skin when exposed to cold temperatures.
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