What is the name which calls Update() of MonoBehaviours

Hello.

I want to know the name that calls Update() of MonoBehaviours, because I will build my mini-framework like MonoBehaviour.
I think it is more friendly for use if the names of function is similar to Unity’s.

And more, I want to know how to get the name of function. (Peep inside of Unity? How?)

Thanks.

I see.
Thanks!