biomed

What is a positive feedback loop?

A mechanism that amplifies the initial stimulus, moving the system further away from the set point. It often initiates a process that must be completed quickly.

What is a negative feedback loop?

A mechanism that counteracts the initial stimulus, bringing the system back towards its set point or ideal physiological range.

In a feedback loop, what is a stimulus?

A detectable change in the internal or external environment that triggers a response.

In a feedback loop, what are receptors?

Sensory structures that detect changes (stimuli) in the environment and send information to the control center.

positive feedback loop

gluecose tolerance test

normal range is 140 mg/dL

diabetes is 200 mg/dL or more

measures how blood sugar levels change overtime and how much sugar is in your blood.

insulin test

how hard or not hard your body is working to manage sugar.

fasting levels: 25 mlU/L or 5-15 mlU/L

after meal: 50 mlU/L