# Animations: IK and FK

## Forward Kinematics

Armatures are rigged from the top down: moving a bigger bone (e.g. a hip joint) makes all smaller bones follow:

<figure><img src="/files/jzrUcwb7X7LmTn1FOjyT" alt=""><figcaption></figcaption></figure>

## Inverse Kinematics

Armatures are rigged from the bottom up. Moving a small bone (e.g. the collarbone) makes all bigger bones follow:

<figure><img src="/files/kVKNK2GYbhh0rzbelHig" alt=""><figcaption></figcaption></figure>


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