- Created by: elizba
- Created on: 27-02-13 21:43
What is homeostatis
Homeostatis is regualting a constant internal enviorment, by maintaining levels of:
- Blood sugar levels
Applies to all forms of homeostatis
It is where our body reacts in an opposite way to something already going on.
For example, controlling our body temperature is negative
This is keeping our body temperature at a temp. of 37 degrees. If our temperature goes above or below 37, then our body reacts to try and get it back to 37.
1. Nerve endings in the dermis send a message to our hypothalamus (part of our brain which controls body temp.)
2. Hypothalamus sends an impulse to the dermis to get the temperature back to 37.
It is the part of our brain that controls body temperature. It does this by sending impulses to receptors and effectors, triggering a response.
ADH- Causes the kidneys/pituatiry glands to produce more concentrated urine.
Insulin- Produces by pancreas which cause the liver to change glucose into glycogen (maintain sugar levels if high)
Glucagon- Hormone produced by the pancreas which causes the liver to change glycogen into glucose (maintain sugar levels if low)
What is the hormone released to make concentrated urine called?
What gland produces ADH?
The pituatiry glands
What does insulin do?
causes the liver to store excess glucose as glycogen
What is the name given to maintaing water levels?
What part of the brain monitors impulses and sends them?