Conversation so far:
What is the function of the osteon in bone?
Osteons are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi, which transport blood.
How big is an osteon?
Osteons are roughly cylindrical structures that are typically between 0.25 mm and 0.35 mm in diameter. Their length varies from several millimeters to around 1 centimeter.
What can the bone osteons tell us?
Osteons in a bone fragment can be used to determine the sex of an individual and age, as well as aspects of taxonomy, diet, health and motor history.
What are osteons made of?
Each osteon consists of concentric layers, or lamellae, of compact bone tissue that surround a central canal, the haversian canal.

Question: can you tell me about the canal
Self-contained rewrite: Can you tell me about the haversian canal?