L2 QUIZ

What is the term for the increase in diameter of blood vessels under the skin in response to internal temperature increase?

• Vasoconstriction
• Vasodilation
• Metabolism
• Shivering

How does the body lose heat through the skin?

• Conduction
• Convection
• Radiation
• Insulation

What role do sweat glands play in regulating body temperature?

• They increase blood flow
• They produce sweat which evaporates and cools the body
• They constrict blood vessels
• They insulate the body

What happens to blood flow when blood vessels under the skin constrict?

• It increases to the skin
• It decreases to the skin
• It remains constant
• It evaporates

What is the purpose of redirecting blood away from the skin to the body’s core in cold conditions?

• To increase heat loss
• To decrease heat loss
• To produce sweat
• To increase metabolic rate

How does subcutaneous fat help in maintaining body temperature?

• By producing sweat
• By dilating blood vessels
• By providing insulation
• By generating metabolic heat

What physiological process generates heat during cold conditions?

• Sweating
• Vasodilation
• Shivering
• Evaporation

Which of the following is not a response to an internal temperature decrease?

• Vasoconstriction
• Shivering
• Increased sweat production
• Blood redirected to the core

Through which process does the body primarily lose heat when blood vessels dilate?

• Convection
• Conduction
• Evaporation
• Radiation

What effect does vasodilation have on blood flow to the skin?

• It decreases blood flow
• It increases blood flow
• It stops blood flow
• It has no effect on blood flow