Interconnected trabecules of primary bone are present in the connective tissue. These trabecules show several osteocytes in lacunae embedded on a bone matrix that does not show a lamellar pattern. Such a primary type of bone is also referred to as woven bone. Along the trabecules there are osteoblasts which are sometimes separated from the intensely stained calcified bone by a layer of lightly stained, recently deposited unmineralized pre-bone.

Stain: H–­­E
Magnification: ×300