Anatomy Notes on Ossification and Epiphyseal Plate Layers

These flashcards cover the key concepts related to ossification processes and the layers of the epiphyseal plate, vital for understanding anatomy.

Intramembranous Ossification

A process where ossification centers form within mesenchymal membrane.

Osteoblasts

Cells that secrete matrix and become trapped during intramembranous ossification.

Endochondral Ossification

A process involving the development of cartilage models that later form bones.

Medullary Cavity

A cavity formed during endochondral ossification that houses bone marrow.

Epiphyseal Plate

A plate of cartilage responsible for the growth of long bones.

Resting Zone

The area of the epiphyseal plate reserved for cartilage.

Proliferation Zone

The zone of the epiphyseal plate where cell division occurs.

Hypertrophic Zone

The zone of the epiphyseal plate where cells undergo hyperplasia.

Calcification Zone

The zone of the epiphyseal plate where cartilage calcifies.

Ossification Zone

The zone of the epiphyseal plate where new bone is formed.

Calcitonin

A hormone that decreases blood calcium levels by promoting osteoclast activity.