What Do Anatomical Position Terms Mean (Superior; Inferior; Proximal; Distal; Medial; Lateral)?

Superior, inferior, proximal, distal, medial, and lateral are directional terms used to describe one body structure’s location relative to another. Their meanings are based on the standard anatomical position, so descriptions remain consistent regardless of the performer’s actual posture.

The Anatomical Position

In the anatomical position, the person stands upright with the head and eyes facing forward, feet directed forward, arms beside the body, and palms facing forward. Left and right refer to the person being described, not the observer.

Anatomical terms are relational. For example, the knee is not simply “proximal”; it is proximal to the ankle but distal to the hip.

These terms form three contrasting pairs: superior and inferior describe vertical position; proximal and distal usually describe position along a limb; medial and lateral describe position relative to the body’s midline.

A common misconception is that proximal means “above” and distal means “below.” This is incorrect. They describe distance from the trunk or point of attachment, so orientation can change without changing the relationship. During a handstand, the elbow remains proximal to the wrist even though it may be physically lower.

IB Exam Technique

For B.1.1 questions, define each term using its anatomical reference and give a precise comparative example. Avoid everyday terms such as “higher,” “inside,” or “nearer” when the question requires anatomical terminology, and always identify both structures being compared.