00:01
All right, so here we are addressing negative feedback mechanisms.
00:16
So what is a negative feedback mechanism? it's where a stimulus produces a response which decreases the stimulus.
00:44
And in this case, we're talking that a stimulus here is a change from a normal.
01:02
So essentially by decreasing the stimulus, we're talking about decreasing the stimulus back towards normal.
01:14
Because depending on the feedback mechanism, it may not bring it completely back to normal, but that's the goal.
01:22
The goal of the negative feedback mechanism is to maintain homeostasis.
01:38
That's what negative feedback.
01:41
Is all about.
01:42
So it's a main feature of all those systems that maintain homeostasis.
02:00
Okay, so by maintaining homeostasis, that means it controls all kinds of responses, okay, so that they stay in normal range and do not overcompensate.
02:46
Okay, now, since this is such a big process to maintain homeostasis and a major feature of homeostatic systems, it's going to take place everywhere.
03:02
So it takes place at all levels...