Posteroanterior means from back to front.
Anterior is the medical term meaning front or in front of.
Posterior (Back)Anterior (Front)term means pertaining to the back and to the front
Anterior means on the front side. Someone lying on their back is supine.
Dorsal is the medical term meaning back.
Dorsum is a medical term meaning back. For example the dorsum of the hand is commonly known as the back of the hand.
Dorsal means situated on the back or on the back part of an organ. In contrast, ventral means situated on the belly side.
Anteroposterior is the directional term used to describe front to back.
Anterior, the front. As opposed to posterior, behind
Dorsal
Posterior.
It's the area in front of the elbow
Torso