What does "adduction" involve regarding limb movement?

Adduction specifically refers to the movement of a limb or body part toward the midline of the body. When a limb such as the arm or leg is brought closer to the center of the body during adduction, it reduces the angle between the limb and the midline. This action is seen in various activities, such as bringing the arms down to the sides after being raised or moving the legs together after being spread apart. Understanding adduction is important in anatomy and kinesiology, as it helps to describe body movements accurately, which is essential for coding and understanding medical documentation accurately.

The other options highlight movements that do not align with the definition of adduction. For example, moving a limb away from the midline describes abduction, while rotational movements or straightening motions refer to different actions entirely. This clarity helps in distinguishing between various types of muscle movements and their corresponding terms in the medical field.