Question

Why is it that we are able to move a few parts of our body easily in various directions and some only in one direction? Why are we unable to move some parts at all?

Answer 1

Answer:

our body is made up of bones and muscles(tissues). In some parts of our body we have a thick bones so we can't move hardly.. But in joints of hands we can move. one more reason is due to there shape ,size and arrangement of them so this is the reason that we are not able to move some parts...