| A | B |
|---|
| Superior | Toward the head end or upper part of the structure of the body above |
| Inferior | Away from the head or toward the lower part of a structure or the body |
| Anterior (ventral) | Toward or at the front of the body / in front of |
| Anterior (ventral) | Toward or at the backside of the body / behind |
| Medial | Toward the midline of the body / on the inner side of |
| Lateral | Away from the midline of the body / on the outer side of |
| Intermediate | Between a more medial and a more lateral structure |
| Proximal | Close to the origin of the body part, or the point of attachment of a limb to the body trunk |
