what is hypothermia and at what degree is it likely to occur?
Hypothermia is when your body drops below a specific temperature. Hypothermia typically occurs at around 32 degrees.
At what temperature does a fever occur?
above 37 degrees
What are the symptoms of heat exhaustion?
- muscle cramps
- fatigue, dizziness, headache, nausea and vomiting.
- Increased heart rate
- red, moist skin
what are the symptoms of hypothermia?
- pale skin.
- dry skin.
- slow pulse rate.
- reduced consciousness
- lack of coordination
How can we control body temperature?
Through a process of homeostasis.
what does homeostasis do?
within our body we have control systems and these systems ensure that our body maintain a constant temperature and steady levels of water, ion and bloody sugar.
what is vaso constriction?
Vaso constriction is a process that requires nerve signals which cause the muscle wall of arterioles to contract which then reduces the bloody flow to the skin and prevents heat loss by conduction and radiation.
what is vasodilation?
Vasodiltation is a process where the nerve signals stop causing the muscle wall of arterioles to relax and this then widens the lumen which increases blood flow near the surface of the skin causing heat loss by conduction and radiation.