Human MC day two

Bones that develop with endochondral ossification

long bones

bones that develop with intramembranous ossification

flat bones

Mineralization

process that gives bones their hard material

Osteoid

what osteoblasts secrete

Trabeculae

fused together bone spicules

Spicules

Projections of newly formed bone.

Hypertrophy

Chondrocytes bubble up and die and are replaced with osteocytes and eventually osteoblasts

Perichondrium

Carilage, connective tissue at the start

Periosteum

Developed to bone- matrix covering outer layer

Lacuna

Small cavity in the matrix that contains the osteocytes

Epiphyses

The ends of the long bone

Diaphysis

The shaft of the bone where the primary ossification center is located

First stage in Intramembranous ossification

Mesenchymal cells (stem cells differentiate into osteoblasts)

second stage in Intramembranous ossification

Osteiod formation (osteoblasts secrete it)

third stage in intramembranous ossification

Mineralization ( osteoid turns to bone)

Fourth stage in intramembranous ossification

osteocytes are trapped in the matrix

last step of intramembranous ossification

Trabeculae form (big matrix picture)