Bone Tissue and cells

It is dense and solid in appearance.

It is characterized by open space partially filled with needle-like structures.

It is found only in the outer layer of bones.

It contains only osteocytes and no other structures.

Nearly equal to cast iron at less than one third the weight

Much weaker than cast iron

Stronger than steel at the same weight

Equal to wood at the same weight

Lamella, lacunae, canaliculi, Haversian canal

Trabeculae, periosteum, endosteum, marrow

Osteocyte, chondrocyte, fibroblast, adipocyte

Blood vessels, nerves, cartilage, ligaments

Contains blood vessels and lymphatic vessels

Stores fat

Produces red blood cells

Connects to the periosteum

Osteoblasts

Osteoclasts

Osteocytes

Chondrocytes

They are giant multinucleate cells

They are responsible for the active erosion of bone minerals

They synthesize and secrete osteoid

They contain large numbers of mitochondria and lysosomes

Ribs, vertebrae, humerus, pelvis, femur

Radius, ulna, tibia, fibula

Scapula, clavicle, sternum, patella

Mandible, maxilla, temporal, occipital

Compact bone is dense and solid, while cancellous bone has open spaces with needle-like structures.

Compact bone has open spaces, while cancellous bone is dense and solid.

Both types of bone have the same structure and appearance.

Cancellous bone is found only in children, while compact bone is found only in adults.

Trabeculae

Volkmann's canals

Haversian canals

Lacunae

Osteoblasts

Osteohyalines

Osteocytes

Osteocells

Osteocyte

Tissue

Fibrocartilage

Osteiod

Ground substance

Collagen fibers

Red marrow

Yellow marrow

Strength

Resilance

Flexibility

Porousness