What two systems are primarily involved in movement?

The primary systems responsible for movement in the human body are the muscular system and the skeletal system. The muscular system comprises all the muscles that contract to create movement, while the skeletal system provides the framework and structure for the body, allowing muscles to attach and exert force. When muscles contract, they pull on the bones of the skeleton, facilitating movement at the joints. This interplay between the skeletal structure and muscle action is essential for any form of physical motion, whether it is a large movement like running or small movements such as typing.

The nervous system, while crucial for coordinating actions and sending signals from the brain to the muscles, is not directly involved in the mechanics of movement itself. Systems like the cardiovascular and endocrine systems support overall body function but do not play a primary role in the actual movement process. Thus, the combination of the muscular and skeletal systems is what makes movement possible.