Toward or nearest the middle/midline is MEDIAL
Posterior.
Proximally
Inferior is the medical term meaning toward the lower parts of the body.
A movement toward the midline is called adduction. Adduct means to bring towards the center. The opposite, "abduction" is moving away from midline.
Anterior is a term meaning situated at or toward the front. Frontal may also be used.
caudalposterior is toward the back, but caudal is toward the tail
Inferior or caudal mean toward the lower part of the body.
Afferent is the term for conducting towards a structure while efferent is the term for conducting away from a structure.
MedialMedio = middle-al = pertaining toMedial = pertaing to the middleMedial
Syncope is the medical term meaning fainting.
Anacusis is the medical term meaning complete deafness.
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.