Anteroposterior
From front to back.
When a chest x-ray is taken with the back against the film plate and the x-ray machine in front of the patient it is called an anteroposterior (AP) view.
As opposed to from back to front (which is called posteroanterior).</P> For a more complete listing of terms used in medicine for spatial orientation, please see the entry to 'Anatomic Orientation Terms'.