Body Temperature - Homeostasis

On Saturday we discussed homeostasis and examples feedback loops. 

Negative - thermoregulation (body temperature), Insulin production in the pancreas, 

Positive - Childbirth, blood clotting. 

We also discussed the parts of a feedback loop (see the video below)

Receptor
Effector

Stimulus

Response

You should also have read through the link below:

How does your body regulate temperature game

Below is the video that we watched in class. The second one is another description of body temperature regulation as a negative feedback loop

Feedback Loops

Our 2nd main topic of the term is Homeostasis. Homeostasis is accomplished mainly via feedback loops. 

Remember that maintaining homeostasis is not JUST responding to changes to your internal and external environments. Sometimes the body needs to 'swing out' of balance to help maintain or 'get back' to homeostasis (ex. running a fever to fight infection, heart rate increasing when running). Can you think of other examples?

Below are 2 videos that explain homeostasis and give examples of the two types of loops:

Negative

Positive

Can you describe the difference between the 2 types and give examples?

Feedback Loops