Blend Animations

Hey, Im Trying to Blend 2 animations (attack + run), can I’m doing it like this!
[image|690x269] (upload://o8g5SoZgiUiVSqKHXQxqbzyC7Ll.png)
And blending it from the bone spine_01, but can I do like, it should blend from the spine_01 to the neck_01 ? So it doesn’t get my head animation blended as well?