What term describes a direction toward the midline of the body?

The term that describes a direction toward the midline of the body is "medial." In anatomical terminology, medial refers to structures that are closer to the center or midline of the body compared to other structures. For example, the nose is medial to the eyes because it is closer to the midline of the face.

Understanding this concept is vital in anatomy and movement analysis, particularly in disciplines like Pilates, where alignment and body positioning are crucial. Recognizing which muscles or joints are medial can help instructors guide clients in proper form during exercises.