directional terms

superior

toward the head end or upper part of a structure or the body; above

inferior

away from the head end or toward the lower part of the structure or body; below

ventral/anterior

toward or at the front of the body; in front of

dorsal/posterior

toward or at the back side of the body, behind

medial

toward or at the midline of the body, on the inner side

lateral

away from the midline of the body, on the outer side

proximal

close to the point of attachment of a limb to the body trunk

distal

farther away from the point of attachment of a limb to the body trunk

superficial/external

toward or at the body surface

deep/internal

away from the body surface, more internal