Nerve bundles are groups of nerve fibers, also known as axons, that are bundled together in the body. These fibers transmit electrical signals between different parts of the nervous system, allowing communication between the brain, spinal cord, and various organs. Each bundle is surrounded by protective tissue, which helps maintain the integrity of the signals being sent. In the human body, nerve bundles can be found in both the peripheral nervous system and the central nervous system. They play a crucial role in functions such as movement, sensation, and reflexes, ensuring that the body responds appropriately to internal and external stimuli.