What type of movement does flexion represent?

Flexion refers to the action of decreasing the angle at a joint. This movement typically occurs when two bones come closer together, which often happens at joints like the elbow or knee. For instance, when you bend your elbow, the angle between the forearm and upper arm decreases, representing flexion. This contrast is important in understanding how various movements can be classified in the context of anatomy and kinesiology.

The other choices represent distinct and separate movements: extension increases the angle at a joint, abduction involves moving a part away from the midline of the body, and increasing the angle of a joint describes the opposite of what flexion entails. Recognizing these terms helps in accurately describing and analyzing movement patterns in physical activity and exercise.