| A | B |
|---|
| Origin | begining site of the more fixed end or attachment of the muscle |
| Insertion | site of attachment of a muscle to the bone and/or tissue which it moves |
| Superior | toward the head; toward the upper part of the (cranial) structure |
| Inferior | away from the head; toward the lower part of the (caudal) structure |
| Anterior | nearer to or at the front of the body. (ventral) |
| Posterior | nearer to or at the back of the body. |
| Doral | top of the foot |
| Medial | nearer the midline of the body |
| Lateral | farther from the midline of the body |
| Proximal | nearer the attachment of a limb to the trunk |
| Distal | away from the attachment of a limb to the trunk |
| External | toward the surface of the body. (superficial) |
| Internal | away from the surface of the body. (deep) |
| Plantar | the sole or towards the sole of the foot |
