What is the anatomical term for the movement that decreases the angle between two body parts?

The anatomical term for the movement that decreases the angle between two body parts is known as flexion. This action typically occurs at various joints in the body, such as the elbow or knee, where one segment moves closer to another, resulting in a reduction of the angle formed between those segments. For example, when bending your arm at the elbow, the forearm moves closer to the upper arm, demonstrating flexion.

Understanding the concept of flexion is crucial when studying kinesiology and movement science, as it helps to identify and describe various types of movements that occur in the human body during physical activity and rehabilitation. This foundational knowledge is essential for kinesiotherapists as they assess and design movement-based interventions for their clients.