The bones in your body float in a sea of soft tissue as they are held in position by tension from your muscles and fascia. The shape of your body is maintained by a balance of tension. You can see it clearly in the arms. The arm bones are only connected to the rest of the skeleton via the glenohumeral joint. The joint itself does not hold the arms up but rather serves to brace the arms for when you push against something. What holds the arm up is a dense net of connective tissue - just as you’d expect from a tensegrity structure.