Final answer:
In terms of directional anatomy, the arm is proximal to the forearm, and the hand is distal to the wrist.
Step-by-step explanation:
The arm (brachium) is proximally located to the forearm (antebrachium), meaning the arm is closer to the shoulder joint when compared to the forearm. Conversely, the forearm is distal to the arm, as it is further away from the central point of the body or the point of attachment to the trunk. The hand is distal to the wrist, indicating that the hand is located further away from the body when compared to the wrist.
In anatomical language, being 'distal to' is a directional term that explains that one body part is further away from the torso compared to another. Similarly, being 'proximal to' indicates that a body part is closer to the torso or the center of the body.