negative feedback mechanisms (1 Viewer)

[micatronic]

from the syllabus:
gather, process and analyse information from secondary sources and use available evidence to develop a model of a feedback mechanism

im a bit stuck for ideas on this one.:worried:
id like to know examples of what other people have used for their models please
after all, they say the best way to make sure you know something is to explain/teach it to others

thanks,
mica.
:wave:

 

[georgechah1]

in humans only

temp increases(thermoreceptors)------feedback--------->hypothalamus(control centre)--------negative feedback---------------------------->sweat glands(afffector)(secret sweat)---------.temp decreases(back to set value approx 37C)

 

[Lachycharts]

in humans only

temp increases(thermoreceptors)------feedback--------->hypothalamus(control centre)--------negative feedback---------------------------->sweat glands(afffector)(secret sweat)---------.temp decreases(back to set value approx 37C)

Made this:

I know this thread is old, but it helped me - so hopefully this helps some people too.

 

[yalando]

Blood sugar levelsStimuli- High/ Low blood sugar levels. Receptors- Alpha/beta cells in the bloodHigh levels (eating a sugary meal) - message sent to hypothalmus- message sent along Periphal nervous system to tell the (RESPONE) pancreas to secrete insulin- Excess glucose stored as glycagon in liver OR increase in cellular respirationLow level (fasting or excercise) - beta cells are the receptors- message sent to Hypothalamus- RESPONSE: pancreases secretes hormone glucagon which stops insulin - glucagon tells liver to break down glycagon into usable glucose Both then return the body to homeostasis I normal blood glucose levels. FIve steps- Receptors-sensory organsHypothalamusMotor neuronsEffect/response