D2 Process of bone growth and remodelling

Question 1

What are osteoclasts?

1 point

Answer 1

Remove unnecessary calcium

Question 2

What are osteoblasts?

2 point

Answer 2

Bring calcium to the body

Create bones

Question 3

What happens to osteoblast activity when exercising?

2 point

Answer 3

Bones become stronger the more exercise you do

Bone calcium stores increase to control demand for calcium

Question 4

What are osteocytes?

2 point

Answer 4

Form osteoblasts

Make up the majority of mature bone matter

Question 5

What are osteoporosis?

3 point

Answer 5

Medical condition that weakens bones, due to loss of stored calcium
Bones become fragile, brittle
More likely to break

Question 6

What is epiphyseal plates?

1 point

Answer 6

Allow the long bones to extend

Question 7

What is epiphyseal line?

2 point

Answer 7

Once bone fully formed the head, or end of each bone

Fuses with main shaft (diaphysis) create epiphyseal line

Question 8

What is calcium and vitamin D essential for? (3 point)

Answer 8

Formation
Growth
Remodelling of bone tissues

Question 9

What happens if to much calcium is removed?

1 point

Answer 9

Bones become weak and brittle

Question 10

Why vitamin D important?

4 point

Answer 10

Needed to absorb calcium
Without it bones become weaker
Existing stores will be used to maintain bone structure
Cant be replaced by new calcium found in the diet