Bone Growth and Fracture healing

Question 1

Cortical Bone has a

Answer 1

Diaphysis

Question 2

Cancellous bone has a

Answer 2

Metaphysis

Question 3

Cortical bone resists

Answer 3

Bending and Torsion

Question 4

Cortical bone in terms of bio active

Answer 4

Less

Question 5

Cancellous bone resists

Answer 5

Compression

Question 6

Cancellous bone is the site of

Answer 6

longitudinal growth from physio

Question 7

What stage of fracture begins immediately after fracture

Answer 7

Inflammation with Haematoma and Fibrin Clot

Question 8

Which by products of cell death are present in stage 1 inflammation after bone fracture

Answer 8

lysosomal enzymes

Question 9

What are Mesenchymal and Osteoprogenitor Cells and when are they present

Answer 9

Transformed endothelial cells from medullary canal and/or periosteum
Osteogenic induction of cells from muscle and soft tissues

Stage 1 Inflammation

Question 10

In Stage 1 inflammation angiogenesis happens what is the oxygen gradient required

Answer 10

low

Question 11

what can produce angiogenic factors under hypoxic factors

Answer 11

macrophages

Question 12

What is gold standard for bone fractures

Answer 12

Autogenous Cancellous Bone Graft

Question 13

what can cause delayed union in bones

Answer 13

smoking
warfarin
nsaids
ciprofloxacin

Question 14

what is osteoclasts doing in non union

Answer 14

excessive