Compact Bone. Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix.Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.ompact Bone. Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix.
It's only the difference in pronunciation. In English, lootenant is chiefly the American pronunication and leftenant the British. In the British and U.S. armies, 1st and 2nd lieutenants are junior officers, and the ranking system is roughly equivalent between the two armies.
Merriam-Webster 's definition of revenant is one that returns after death or a long absence.. In that the subject returns from death, one can easily see an association of the term with the undead in fantasy and horror fiction.On the other hand, unlike zombies, the revenant's long absence does imply a certain anachronism in its eventual return. In Peter Straub 's Ghost Story, the female ghost is a revenant as declared by the protagonist. 2  The revenant manifests itself throughout time and space at will and as different personalities to fulfill its mission of vengeance.