Volkmann's canal connects

Volkmann's canal Inter connect :-

Volkmann's canal Inter connect :-

Volkmann's canals occur in:

Transverse canal that joins longitudinal Haversian canals is known as Volkmann's canal. It is a characteristic feature of the bone of

Transverse canal that joins longitudinal Haversian canals is known as Volkmann's canal. It is a characteristic feature of the bone of

Volkmann's canal are found in :

Volkmann's canal are found in :

What are Volkmann's canals ? What is their role ?