Final answer:
The muscular system has several functions, including maintenance of posture, respiration, production of body heat, and constriction of organs & vessels.
Step-by-step explanation:
The muscular system has several functions, including maintenance of posture, respiration, production of body heat, and constriction of organs & vessels. One example of the muscular system's function is the maintenance of posture. The muscles in our body work together to keep us upright and maintain our balance. Another example is respiration, where the muscles involved in breathing help expand and contract our lungs to inhale and exhale air. Lastly, the production of body heat is another function of the muscular system. When our muscles contract, they generate heat, which helps to regulate our body temperature.