Which anatomical orientation term signifies "further from the origin of the body part"?

The term that signifies "further from the origin of the body part" is indeed distal. In anatomical terminology, "distal" is used to describe a position on a limb that is farther away from the trunk or the point of attachment, while "proximal" would indicate a position that is closer to the trunk or point of origin.

For instance, when considering the limbs, the fingers are considered distal to the wrist, as they are further away from the body's center. In contrast, the shoulder is proximal to the elbow because it is closer to the torso. This distinction is crucial for accurately describing the locations of body parts relative to one another, which is fundamental in anatomy and understanding human physiology.

The other terms provided do not convey the same meaning. "Medial" refers to a position that is closer to the midline of the body rather than relating to distance from the trunk. "Proximal" indicates something that is closer to the point of origin or attachment, which is opposite to distal. "Superficial" pertains to structures that are closer to the surface of the body, again not relating to distance from the trunk or origin point. Understanding these terms helps in effectively communicating anatomical locations and relationships.