Adding Armature

I did a demo of this on an old model first, once an armature is added, in edit mode the bone was extruded starting by working up the spine, once at the head, bones were exdruded from the shoulder region for the arms. I only rigged the upper body at first but the same process will be carried out on the lower section of the body. All bones should be nameed as working through and the arms should be set parent to the shoulder so only the arm moves when when you select the hand bone.