Haversian canal
Also called: haversian canals
What it means
A Haversian canal is a tiny tunnel running through dense bone that carries blood vessels and nerves to keep the bone tissue alive and nourished.
Your bones rely on this blood supply network to heal and adapt, so healthy circulation through them supports lifelong bone upkeep.
A Haversian canal is one of the small channels that run lengthwise through the hard, dense part of your bone, called cortical bone. Each canal carries blood vessels and nerves deep into the bone tissue. These canals connect to each other through smaller side passages called Volkmann's canals, forming a network that reaches almost every part of the bone.
This network matters because bone is living tissue, and living tissue needs a blood supply. Nutrient arteries enter the bone through tiny holes called foramina, then branch into Haversian canals. The blood flowing through them delivers oxygen, calcium, and growth factors to bone cells, and carries waste products away.
Without good blood flow through this system, bone cannot heal properly or adapt to the demands placed on it. So while it's easy to think of bone as solid and unchanging, the Haversian canal network is a reminder that bone is actively nourished and maintained throughout life.
How sure is this?
Graded Established Science: Supported by broad scientific consensus and decades of research. Read each study with its grade in mind. One study is a piece of the picture, not the whole of it.
Where the Academy teaches it
This page is the short version. The lessons teach it in full, with the context around it and a quiz to lock it in.
Related words
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