Human Bio-Bones

Flat bones

Protection—Sternum, ribs, skull bones

Long Bones

Support weight & movement—Femur, tibia, fibula, humerus, radius, ulna

Short bones

Stability & Movement—carpals, tarsals

Irregular bones

Protect organs—Vertebrae, pelvis

Seismoid bones

reinforce tendons—patella

Osteocytes

Mature bone cells enclosed in tiny chambers called LACUNAE

Lamellae

rings made of osteocytes and lacunae

Haversian Canal

houses blood vessels and nerves

Canaliculi

tiny canals that link osteocytes

epiphyseal disk

“growth plate” band of cartilage between the epiphysis and diaphysis

Epiphysis

ends of bone

Diaphysis

shaft of bone

articular cartilage

padding, ends of bone

Epiphyseal line

growth plate

Periosteum

membrane covering bone

Endosteum

lines interior

Medullary cavity

contains yellow marrow (fat storage)

Spongy bone

contains red marrow