The only bone is the body.

[curiousmind]

What is the only bone in the body that articulates with 11 others?

[Peter Pedant]

I think it is gonna be one of the bones in face - maxilla. I tip vomer or petrous temporal bone but I am gonna have to erm look it up. The articulations will be bony or fibrous.

[ezapf]

Rib? 12 pairs.

[Jansy]

The sternum?

[ezapf]

Can't imagine how they articulate though.

[portocat]

would it be in the ear?  there are lots of little bones in the ear

[Cetti]

Dermatocranium.

[Peter Pedant]

Oh God it is the sternum. -

Clavicle and first five ribs on each side.....

however the sternum is made up of bones itself - (sternebrae), so each sternebra, um doesnt articulate with eleven. the search continues.

The liddle bones in the ears are in a chain -if they had eleven articulations you couldnt use them to hear.

[ezapf]

Thoracic vertebra?

http://www.spineuniverse.com/displayarticle.php/article2000.html