Superior
A structure above another
Inferior
A structure below another
Cephalic
Closer to the head than another structure
Caudal
Closer to the tail than another structure
Anterior
The front of the body
Posterior
The back of the body
Ventral
Toward the belly
Dorsal
Toward the back
Proximal
Closer to the point of attachment to the body than another structure
Distal
Farther from the point of attachment to the body than another structure
Lateral
Away from midline
Medial
Toward midline
Superficial
Toward or on the surface
Deep
Away from surface, internal