A nerve plexus is a network of intersecting nerves that come together to form a complex structure. These networks allow for the redistribution of nerve fibers, which helps to coordinate and enhance the function of the nervous system. Major nerve plexuses in the body include the brachial plexus, which supplies the arms, and the lumbosacral plexus, which supplies the legs. Nerve plexuses are essential for transmitting signals between the central nervous system and various body parts. They ensure that motor and sensory information is efficiently relayed, allowing for coordinated movements and responses. This organization helps protect against nerve damage, as multiple pathways can compensate if one nerve is injured.