What are negative and positive feedback loops and how does it regulate...?

Describe negative and positive feedback loops, and discuss how feedback mechanisms regulate each of the following





- The menstrual cycle in a nonpregnant human female.


- Blood glucose levels in human.

What are negative and positive feedback loops and how does it regulate...?
negative and positive feedback loops are methods or types of homeostasis. negative feed back loops are where a signal is sent out (nervous or chemical) and recieved by a receptor which triggers a %26quot;stop%26quot; or %26quot;layoff%26quot; reponse (chemical or nervous) this response is relayed back to the original sender who stops sending out the original signal (in non human biol terms, you send me and email, and keep sending me emails, i receive the email(s) and reply to you, this lets you know that ive got it, and you stop sending them..)


a positive feed back loop is similar to the negative feedback loop, EXCEPT instead of the %26quot;stop%26quot; or %26quot;layoff%26quot; response, it sends a %26quot;more%26quot; response, so the the original message sender keeps relaying the message.


negative feedback loops are the most common, as they are sustainable, positive feedback looops are only sustainable for a certain amount of time, and then part of it has to give way





sorry thats a bit vague, but i havent dont feedback loops (i know what they are in my head, but actually defining them) for about 6 years...



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