<P> Each osteon consists of concentric layers , or lamellae , of compact bone tissue that surround a central canal , the haversian canal . The haversian canal contains the bone 's blood supplies . The boundary of an osteon is the cement line . </P>
<P> Each osteon consists of concentric layers , or lamellae , of compact bone tissue that surround a central canal , the haversian canal . The haversian canal contains the bone 's blood supplies . The boundary of an osteon is the cement line . </P>
the central canal of an osteon contains what
the central canal of an osteon contains what
the bone 's blood supplies
the bone 's blood supplies