Which term would describe a site that is "towards the outer extremities" of the body?

The term that describes a site that is "towards the outer extremities" of the body is lateral. In anatomical terminology, lateral refers to a position that is farther away from the midline of the body or from a designated point of reference. This makes it applicable to structures that are situated towards the sides of the body.

For example, the arms are lateral to the chest because they are located on the sides of the body, away from the center. Understanding this positional terminology is vital in the medical field for clear communication regarding the location of various body parts in relation to one another.

The other terms describe different positional relationships: medial refers to a position closer to the midline, proximal means closer to the point of attachment or origin, and distal refers to a position farther away from the point of attachment or origin, which all clarify their own unique spatial relationships in the body.