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Title: Hormones are released in the body in response to a Negative feedback. Why is it called Negative feedback ? Post by: Rjune1 on Sep 16, 2012 The process is easy to understand but why negative and not positive ? What I mean is say your blood sugar level is above average, this will trigger realease of GHRH as if the body was saying YES, I need this hormone... as opposed to NO, I need this hormone ? Get my drift ?
Title: Hormones are released in the body in response to a Negative feedback. Why is it called Negative feedback ? Post by: lexes55 on Sep 16, 2012 Negative Feedback means that the lowering of one substance will cause the elevation of another; or the elevation of one substance will cause the lowering of another.
It's like ACTH. Increased ACTH caused increased aldosterone, Now, if aldosterone increases, this will cause the levels of ACTH to decrease. This is called Negative Feedback. But if the increase in aldosterone cause the levels of ACTH to increase (which doesn't happen in life), then this is called Positive Feedback. Hope you got it. |