Microscopic Structure of Bone
Central (Haversian) Canal
runs parallel to the long axis of the bone and carries blood vessels, nerves, and lymphatic vessels through the bony matrix.
Perforating (Volkmann's) Canals
canals that run at right angles to the shaft and connect the blood and nerve supply of the medullary cavity to the central canals.
tiny canals radiating outward from a central canal to the lacunae of the first lamella and then from lamella to lamella. Form a dense transportation network through the hard bone matrix, connecting all the living cells of the host eon to the nutrient supply.