Thermoregulation (T)

• What is the normal human body temperature?

  37 degrees Celsius
• What is the role of the thermo regulatory center in the brain?

  It monitors and controls body temperature.
• What is homeostasis in relation to body temperature?

  • Keeps internal conditions relatively constant
  • Includes regulation of body temperature
• What happens when body temperature gets too high?

  Sweat glands produce sweat, which evaporates to cool the body down.
• How does sweating help regulate body temperature?

  It cools the body by evaporating sweat, taking energy away.
• What is vasodilation?

  Vasodilation is the widening of blood vessels supplying capillaries.
• What effect does vasodilation have on body temperature?

  It allows more blood flow, transferring heat out and cooling the body.
• What happens when body temperature drops too low?

  Blood vessels constrict, and the body may shiver.
• What is vasoconstriction?

  Vasoconstriction is the narrowing of blood vessels supplying capillaries.
• How does shivering help to warm the body?

  It generates heat through muscle contractions and increased respiration.
• What are the body's responses to low body temperature?

  • Blood vessels constrict (vasoconstriction)
  • Shivering occurs to generate heat
  • Sweating stops
• How does the body respond to restore normal body temperature?

  It activates sweating, vasodilation, shivering, and vasoconstriction.