homeostasis - thermoregulation Flashcards
(7 cards)
1
Q
what is normal human body temperature
A
37 degrees celsius
2
Q
how is our body temperature monitored and controlled
A
by our brain
3
Q
what is this part of the brain called
A
the thermoregulatory centre
4
Q
what does the thermoregulatory centre contain
A
receptors which are sensitive to the temperature of the blood
5
Q
true or false
the skin also contains temperature receptors
A
true
these send electrical impulses down sensory neurons to the thermoregulatory centre
6
Q
what happens if our body temperature gets too high e.g. when we are exercising
A
- sweat glands release sweat onto he skin
- the sweat evaporates and takes energy away cooling down the body
- the body can also cool down through flushing (vasodilation)
7
Q
what happens if our body temperature gets too low
A
- vasoconstriction to reduce blood flow
- shivering
- stop sweating
- goose bumps
