Bone tissue anatomy

Epiphysis

Ends of long bones

Diaphysis

Middle Section

Epiphysial Plate

Growth Plate

Articular Cartilage

Smooth Cover of Epiphysis

Compact Bone

Dense, hard outer layer of bone tissue that provides strength and structural support

Spongy Bone (cancellous)

Porous bone tissue found at the ends of long bones

Red Marrow

Inside spongy bone, blood production

Yellow Marrow

Inside Compact bone, fat storage

Medullary Cavity

Cavity inside of compact bone

Periosteum

Outside layer on bone where tendons attach

Sharpey's Fibers

"Hooks" that hold the periosteum to the bone

Endosteum

Lines the medullary cavity

Haversian Canals

Blood vessels run parallel to bone

Volkman Canals

Blood vessels run perpendicular

Trabeculae

Needlelike bars that compose spongy bone

Osteon

Functioning unit of bone

Canaliculi

Little blood canals

Lacunae

Boxes of osteocytes

Osteocyte

Cells of the bone

Lamellae

The rings of the bone

Osteogenic

Stem Cell that differentiates into Osteoblasts

Osteoblasts

Forms bone matrix

Osteoclasts

On the endosteum of Medullary cavity, destroys bone

Osteocytes

Maintains bone

Tubercle

Small place for attachment

Tuberosity

bump used for attachment

Head

Prominent rounded surface supported on neck

Facet

Small, flat articular surface

Condyle

Rounded articular surface

Foramen

Large round or oval opening through a bone

Fossa

Shallow depression

Sinus

Air-filled cavity

Process

Pointed projection for attachment

Trochanter

Large, irregularly shaped projection for muscle attachment

Trochlea

"spool" shaped articular process