SKELETAL SYSTEM (SPONGY BONE AND COMPACT BONE), LECTURE EXAM)

lamellar bone

Mature bone is called

Lamellae

It is organized into thin, concentric sheets or layers

Bone

can be classified according to the amount of bone matrix relative to the amount of space within the bone

Spongy bone

has less bone matrix and more space

Compact bone 

which has more bone matrix and less space.

Trabeculae

Spongy bone consists of interconnecting rods or plates of bone called

trabeculae

Between the _____ are spaces, which in life are filled with bone marrow and blood vessels

Central canals

are lined with endosteum and contain blood vessels, nerves, and loose connective tissue.

Compact bone, or cortical bone

is the solid, outer layer surrounding each bone.

Osteon

The functional unit of compact bone is an

Central canal

It is composed of concentric rings of matrix surrounding a

Central canal 

are lined with endosteum and contain blood vessels, nerves, and loose connective tissue.

Lamellae

are concentric rings of bone matrix which surround the central canal

Lacunae

Osteocytes are located in spaces called ___________ between the lamellar rings

Canaliculi

Small tunnels called ____________ radiate between lacunae across the lamellae.

Canaliculi

connect osteocytes to one another, transport nutrients and remove waste