Ossification

Question 1

1

Answer 1

Osteoclasts clear old bone to make space for new bone

Question 2

2

Answer 2

Osteoblasts help to build new bone by laying down minerals such as calcium and collagen

Question 3

3

Answer 3

Calcium and collagen helps to crystalise the cartilage

Question 4

4

Answer 4

When the cartilage crystalises, this makes the bone hard, causing ossification, allowing the bones to grow longer by the epiphyseal plate moving upwards