While bones are sometimes considered to be organs, they are the *structural components* of the skeletal system, not organs themselves.

Here's why:

* Organs are made up of different tissues working together to perform a specific function. For example, the heart is an organ composed of muscle tissue, connective tissue, and nervous tissue to pump blood.

* Bones, while complex structures, are primarily made of bone tissue. They have a specific function (support, protection, movement, etc.) but are not made up of multiple different tissue types like organs.

So, the skeletal system is made up of 206 bones, not organs.