What is the name of the tiny channels through which blood vessels pass in bone?

The correct response identifies Volkmann's canals as the tiny channels through which blood vessels pass in bone. Volkmann's canals, also known as perforating canals, serve an essential role in the vascular system of bone by connecting the vascular supply of the periosteum (the outer covering of bone) to the Haversian canals within the bone matrix. This relationship allows for the distribution of nutrients and the removal of waste products from bone tissue.

Understanding Volkmann’s canals highlights their significance in maintaining bone health and integrity, as they facilitate communication and nutrient supply throughout the bone structure. They are positioned perpendicular to the long axis of the bone and provide a pathway for vessels and nerves in conjunction with Haversian canals, which run along the length of bone and form a central part of the osteon, or Haversian system. Thus, Volkmann's canals contribute to the overall function of the bone by ensuring that the inner layers of bone receive adequate blood supply.