ical cal d 1. List four functions of the muscular system. 2. Muscles always __ and never __

1. Four functions of the muscular system are:<br /> - **Movement**: Muscles are responsible for all voluntary and involuntary movements in the body, including walking, running, and even the beating of the heart.<br /> - **Posture Maintenance**: Muscles help maintain posture by stabilizing joints and holding the body in position.<br /> - **Heat Production**: Muscle activity generates heat as a byproduct, which helps to maintain body temperature.<br /> - **Joint Stabilization**: Muscles help stabilize joints, providing support and preventing dislocations.<br /><br />2. Muscles always **pull** and never **push**.