In Relationship to the Diaphysis of a Long Bone, the Osteons

Question

In relationship to the diaphysis of a long bone, the osteons are
A) radial.
B) anterior.
C) parallel.
D) proximal.
E) diagonal.

Accepted Answer

Osteons, or Haversian systems, are the structural units of compact bone. They are oriented parallel to the long axis of the bone, which means they run in the same direction as the diaphysis, or the shaft, of a long bone.