Medically reviewed by Jennifer Steinhoff, MD The humerus is your upper arm bone. It is the longest bone in the upper part of ...

like your shoulder and hip. Others, like your knee and elbow, move a little less. Others, like your spine and neck, are only able to move a little. Let's try to make a model of an arm. Find two ...

The shoulder blade (scapula) is one of two triangular bones in the upper back ... You might also experience the following ...