Thermoregulation: How the Body Controls Temperature

Why is it crucial to maintain a core body temperature of around 37 degrees Celsius?

• For better blood circulation

• For optimal enzyme function

• To prevent skin damage

• To avoid dehydration

Which of the following is NOT a factor that can affect body temperature?

• External temperature

• Respiration

• Diet

• Diseases

Which process is an example of homeostasis in the body?

• Circulation

• Respiration

• Digestion

• Thermoregulation

What is the primary role of the hypothalamus in temperature regulation?

• To produce heat

• To increase blood flow

• To monitor and control body temperature

• To cool down the body

How does shivering help in maintaining body temperature?

• By reducing energy transfer

• By increasing blood flow

• By generating heat through muscle contractions

• By trapping air for insulation

What happens to the erector muscles in the skin when the body is cold?

• They relax

• They contract

• They produce sweat

• They increase blood flow

Which of the following is a response of the body to high temperatures?

• Shivering

• Contraction of erector muscles

• Reduced blood flow to the skin

• Sweating

What is the effect of increased blood flow to the skin surface when the body is hot?

• It increases heat loss

• It traps heat

• It reduces heat loss

• It decreases sweating

How does sweating help in cooling down the body?

• By reducing blood flow

• By contracting muscles

• By trapping air

• By evaporating and transferring heat to the environment

What happens to the erector muscles when the body is too hot?

• They relax

• They produce more sweat

• They increase blood flow

• They contract