| A | B |
| Superior | Toward the head, or the upper part of a structure. |
| Inferior | Away from the head, or the lower part of a structure. |
| Anterior | Nearer to or at the front of the body. |
| Posterior | Nearer to or at the back of the body. |
| Medial | Nearer to the midline or midsagittal plane. |
| Lateral | Farther from the midline or midsagittal plane. |
| Intermediate | Between two structures. |
| Ipsilateral | On the same side of the body as another structure. |
| Contralateral | On the opposite side of the body from another structure. |
| Proximal | Nearer to the attachment of a limb to the trunk; nearer to the point of origin. |
| Distal | Farther from the attachment of a limb to the trunk; farther from the point of origin. |
| Superficial | Toward or on the surface of the body. |
| Deep | Away from the surface of the body. |