Bone Cells, Bone Remodeling and Osteoporosis

Question 1

Osteoblast (4 points))

Answer 1

1.Osteoblasts BUILD NEW bone
2. They are smaller than the osteoclast
3. They follow after the osteoclast
4. They lay down new bone in the “divot” left behind by the osteoclast

Question 2

Osteoclast (4 points)

Answer 2

1. Osteoclasts EAT AWAY OLD bone
2. They are BIGGER than the osteoblasts
3. They TRAVEL AHEAD of the osteoblast
4. They create a “hole” or “divot” for the osteoblast to fill in with new bone

Question 3

Osteoporosis (3 points)

Answer 3

1. Osteoporosis is the loss of bone to such an extent that the bone becomes brittle and at risk of fracturing easily with minimal force.
2. It occurs when the osteoclasts outnumber the osteoblasts.
3. Osteoporosis is preventable with proper nutrition and weight-bearing exercise such as resistance training.