What is the term for structures or organs located on the same side of the body?

The term "ipsilateral" refers to structures or organs that are located on the same side of the body. For example, if there is an injury to the right arm, the right leg would be considered ipsilateral to that injury, as both structures are on the right side of the body.

In contrast, "contralateral" describes structures that are on opposite sides of the body; therefore, if an injury occurs on the right arm, the left arm would be considered contralateral. The terms "distal" and "proximal" relate to the position of structures in relation to a point of reference on the body, typically moving away from (distal) or moving closer to (proximal) the trunk or point of attachment, and do not indicate side orientation. Thus, the correct answer effectively defines the relationship in terms of lateral positioning within the body.