Microscopic Anatomy of Bone

where are spongy bone and compact bone found?

it is the location of muscle attachment and bone repair

spongy bone

a lattice of trabeculae (little beams) that are found along the lines of stress for perfect resistance from compression.

what is filled between the trabeculae of spongy bone?

spaces filled with marrow or blood vessels

compact bone

arranged in cylinder called osteons

what are osteons?

the are arranged in conentric circles called lamellae

what do lamellae do?

they surround a central for (haversian) canal that contains blood vessels

how are the central canals connected?

by perforating (volkmann’s) canals running perpendicular

osteocytes

mature bone cells make up the majority of the bone structure

osteoclasts

they are connected with tentacle like canculi

what is the function of canculi ?

they connect all bone cells which allows them to receive nutrients and remove wastes

osteoblasts

lines the Haversian canal and the surface of the compact and spongy bone.

they produce new bone