Final answer:
The Haversian canal travels longitudinally down the center of each osteon in compact bone, supplying it with essential blood vessels, nerves, and lymphatic systems.
Step-by-step explanation:
The Haversian canal, also known as the central canal, travels longitudinally down the center of each osteon, which is the structural unit of compact bone. This canal is essential for bone health because it contains blood vessels, nerves, and lymphatic vessels. These elements supply the bone with nutrients and remove waste products. Perforating canals, or Volkmann's canals, branch off from the Haversian canals at right angles to connect them with the periosteum and endosteum – the layers covering the bone.