On a general humanoid model you will have
overhead
head
chest
hands
left hand
right hand
feet
left foot
right foot
origin
Again, like mecheon said, it depends on the models. "tail" is another freqent one. Models that have many limbs, like the magnataur or the scorpions will have different names for the attachment points and buildings have stuff like "large1" an "large2" and so on.
-VGsatomi