Thermoregulation Flashcards
What is your normal body temperature
37 degrees
What happens if your temperature is above 38 degrees
Fever
What does it mean if your temperature is below 36 degrees
Hyperthermia
Thermoregulation
control of body temperature
What part of your brain monitors temperature
Hypothalamus
What happens to your enzymes if you have fever or hyperthermia
They denature
How does the hypothalamus control body temperature
it receives information from temperature receptors in the dermis of skin
Receptors inside hypothalamus detect temperature changes in brain and blood
cold environment:
Shivering
muscles contracting and relaxing rapidly
energy released from cell respiration warms you up
Cold environment
goosebumps
erector muscles in dermis of skin contract to make hairs stand up, trapping air for insulation
cold environment
reduction of blood flow near skin
keeps blood warm inside your body
vasoconstriction
reduces rate of transfer of energy to air by heating
hot environment
sweating
spreads out as thin layer over skin epidermis, where it evaporates, transferring energy from skin to surroundings by heating, so skin cools down
hot environment
increased blood flow
increased blood flow near surface of skin makes it easy for blood to transfer energy