Motor nerves are specialized nerve fibers that transmit signals from the central nervous system (CNS) to muscles throughout the body. These signals enable voluntary movements, such as walking or picking up objects, by instructing muscles to contract and relax. There are two main types of motor nerves: somatic motor nerves, which control skeletal muscles, and autonomic motor nerves, which regulate involuntary muscles like those in the heart and digestive system. Proper functioning of motor nerves is essential for coordinated movement and overall physical activity.