homeostisis Flashcards
1
Q
What is homeostasis?
A
The maintaining of a constant internal environment via negative feedback
2
Q
What are the three components of the regulatory system?
A
- receptor
- controll centre
- Effector
3
Q
what temperature qualifies someone to be hyperthermic?
A
above 40°
4
Q
Why is hyperthermia so dangerous?
A
it can lead to heat exhaustion
5
Q
What part of the brain is the control centre?
A
The hypothalamus
6
Q
How can you metabolic rate help you?
A
An increase metabolic rate increases respiration, producing more heat inside your body
7
Q
What hormones can increase your metabolic rate?
A
adrenaline and thyroxine
8
Q
What is frostbite?
A
localised hypothermia caused by blood moving away from your extremities
9
Q
what is the definition of burns?
A
localised hyperthermia due to exposure to heat
