Muscle innervation refers to the process by which nerves supply muscles with signals that control their movement. Each muscle is connected to a specific nerve, which transmits electrical impulses from the central nervous system to the muscle fibers. This communication allows muscles to contract and produce movement. The primary nerves involved in muscle innervation are motor neurons, which originate in the spinal cord and extend to the muscles. When a motor neuron is activated, it releases neurotransmitters at the neuromuscular junction, leading to muscle contraction. Proper innervation is essential for coordinated movement and overall muscle function.