The vertebral column is vertical, the arms are extended with palms facing anteriorly, and the legs are extended with toes pointing anteriorly (towards the front of the body).
Directional nomenclature
Proximal
Closer to the center of the body or limb attachment
Distal
Further from the center of the body or limb attachment
Contralateral
On opposite sides of the body
Ipsilateral
On same side of the body
Intermediate
A structure between two others
Superior
Towards the top of the head
Inferior
Towards the feet
Medial
Towards the midline of the body
Lateral
Away from the midline of the body
Sagittal plane
Divides body into right and left sides
Transverse plane
Divides body into superior and inferior divisions
Superficial
Structure that is close to the surface of the body