Blood vessels regulate body temperature by:

Question

• Changing in diameter
• Changing in blood flow direction
• Changing in location
• Changing in shape

Answer 1

Blood vessels regulate body temperature primarily by changing in diameter, also known as vasodilation and vasoconstriction. Vasodilation occurs when the blood vessels widen to allow more blood flow and heat to escape, helping to cool the body down. Vasoconstriction, on the other hand, occurs when the blood vessels narrow to reduce blood flow and conserve heat, helping to keep the body warm. Additionally, blood vessels can also change in location and shape to help regulate body temperature.