B3.3.5 Flashcards
1
Q
What triggers the thirst response
A
A reduction in water potential or blood plasma or an increase in salt
2
Q
What does the thirst response do
A
Impulse sent to your brain telling you to take on more fluids. Kidney responds by reproducing less urine.
3
Q
If you don’t take on more fluids what happens
A
You’d become dehydrated
4
Q
What are the symptoms of dehydration
A
Dark coloured urine
Headaches and dizziness
Lack of energy
If dehydrated for too long person may suffer permanent damage to kidneys or liver
5
Q
If the water potential is too high what happens
A
It responds by producing large volumes of non-concentrated urine. If water is consumer to rapidly, water moves by osmosis into cells causing them to burst as a result.
