anter/o

anterior nearer to or toward the front; ventral

poster/o

posterior nearer to or toward the back; dorsal; situated behind

ventr/o

ventral belly side; same as anterior surface in humans

dors/o

dorsal directed toward or situated on the back side; same as posterior surface in humans

medi/o

medial, median middle or nearer the middle; the prefix mid- also means middle

later/o

lateral toward the side; denoting a position farther from the midline of the body or from a structure

super/o

superior uppermost or above

infer/o

inferior lowermost or below

proxim/o

proximal nearer the origin or point of attachment

dist/o

distal far or distant from the origin or point of attachment

cephal/o

cephalad toward the head

caud/o

caudad toward the tail or in an inferior direction in humans

intern/o

internal inside, within (L., internus)

extern/o

external outside (L., externus)