posterior
The anatomical term meaning "situated toward the front" is: anterior.
The medical term you are looking for is "posterior." This term refers to the back side of the body or something positioned behind a particular structure.
Medial means situated in the center.
Deep is the medical term meaning far from the surface.
extracorporeal
Extracorporeal
medial
Subtracheal means beneath the trachea.
Dorsal is the medical term meaning back.
Anterior is a term meaning situated at or toward the front. Frontal may also be used.
Dorsum is a medical term meaning back. For example the dorsum of the hand is commonly known as the back of the hand.