sigma

Muscle tendons attach to bone by interlacing with

Periosteum

Cells that produce the calcified matrix of bone

Osteoblasts

Secondary ossification center of a long bone is in the

Epiphysis

Primary function of red bone marrow

Produce blood cells

Steps in endochondral bone formation

Cartilage model

An osteocyte is a

Bone cell surrounded by matrix

Bone developing between sheetlike connective tissue layers

Intramembranous bone

Microscopic chambers housing mature bone cells

Lacunae

Main salt in bone matrix

Calcium phosphate

Joints between vertebrae of the backbone

Slightly movable

4 functions of bone

Support & protection; Muscle attachment; Mineral storage; Blood cell formation

Break in the shaft of the bone

Diaphysis

Osteocytes in compact bone are connected by

Canaliculi

Intramembranous bone formation gives rise to

Flat bones of the skull

As long bone diameter increases, medullary cavity

Increases in size

During growth, chondrocytes

Multiply, enlarge, die

Growth in length of long bone occurs at

Epiphyseal disk (growth plate)

Outer surface of bone is covered by

Periosteum

4 characteristics of a long bone

Medullary cavity; Red/yellow marrow; Endosteum; Epiphyses at ends

Compact bone consists of osteocytes in spaces called

Lacunae

Osteoblasts surrounded by matrix become

Osteocytes

4 characteristics of synovial joints

Articular cartilage; Synovial fluid; Bursa; Joint capsule

Example of a saddle joint

Thumb

Turning doorknob clockwise movement

Supination

Movement of thigh from sitting to standing

Extension

Bone cells that dissolve calcified matrix

Osteoclasts

Endosteum is found lining the

Medullary cavity

Primary ossification center of a long bone is at the

Midpoint of diaphysis

Yellow bone marrow is mainly

Fat tissue

3 characteristics of growing skeleton

Epiphyses separated by cartilage; Osteoblasts deposit calcium; Periosteum present