superior
upper in position, towards the head
inferior
lower in position, towards the feet
anterior
towards the front
posterior
towards the back
ventral
belly side
dorsal
back side
midline
an imaginary line through the middle of the body
medial
towards the midline
lateral
away from the midline
distal
away from the origin or point of attachment to the body
proximal
toward the origin or point of attachment to the body
sagittal
an imaginary vertical plane dividing the body left into right side or parts
transverse plane
an imaginary horizontal line from left to right that divides the body into superior and inferior parts
coronal plane
an imaginary vertical line dividing the body into anterior and posterior parts