1. Surface Features Projections: for attachment, called processes
Depressions: for joints to fit together, called fossa
Openings: for blood vessels and nerves, called foramen (skull), meatus (hole for hearing), sinus (large chamber)

3. Osseous Tissue

4. Osteocyte: Mature bone cell, maintain bone
Osteoblast: bone builder-differentiates into a osteocyte
Osteoclast: dissolve bony matrix and release stored minerals
Remodeling: Combination of osteoblast and osteoclast

5. Haversian Canal: central canals-contain blood vessels and nerve fibers help with bone nourishment.

6. Very small tubes that pass through the bone.
Canaliculi
Very small tubes that pass through the bone.

7. Concentric circles of the bone.
Lamella
Concentric circles of the bone.

8. Lacuna
Houses the osteocytes.

9. Matrix
Calcium Phosphates and calcium carbonates.