What is the difference between medial rotation and lateral rotation in terms of movement and function?

Medial rotation involves turning a body part towards the midline of the body, while lateral rotation involves turning a body part away from the midline. In terms of movement, medial rotation brings a body part closer to the center of the body, while lateral rotation moves it further away. Functionally, medial rotation is often used for activities like hugging or crossing arms, while lateral rotation is commonly used for actions like throwing a ball or opening a door.