Bone Flashcards
Label the structure of bone
What is the outside layer of bone called?
Cortical/Compact bone
What is the inner layer of bone called
Spongy/Cancellous
What is bone made of?
Collagen TYPE 1
Calcium
Bone Cells
Which cells are the precursor cells to all bone cells?
Osteoproginator cells
Which cells break down bone?
Osteoclasts
Which cells make new bone?
Osteoblasts
Which cells live in Howships Lacunae?
Osteoclasts
What is the process of making new bone called?
Remodelling
Which cells live in lacunae and comminicate with each other via caniculi?
Osteocytes
What do bisphosphonates do?
Stop bone resorption
What does PTH do in this context?
Increase bone resorption
What is the Trendelenberg sign?
When standing on one leg that isnt affected, the affected gets pulled across as weak abductors
What is the outermost layer of bone called?
Periosteum
What is the relevance of RankL and Rank?
Rank is on osteoclasts and rankL activates them. It is found on osteoblasts
