What 2 parts make up the skeletal system?
Axial
Appendicular
Avinicular
Agenulear
Define bone
A collection of highly specilalised connective tissues
Made of calcified extracellular matrix and bone cells
Fed by capillary beds
Which of the following are NOT bone functions?
Support
Collagen production
Blood cell production
Triglyceride storage
Mineral homeostasis
Carbohydrate storage
Amino acid synthesis
Which of the following begin the generation of bone tissue?
Osteoblasts
Osteogenic cells
Osteocytes
What is the progression of bone generating cells A- Ostogenic cell B- Osteocyte C- Osteoblast
A --> C --> B
A --> B --> C
C --> A --> B
What is the process of bone generation called?
Osteogenesis
Calcification
Osteogeneration
How is bone formed?
Collagen form structural framework
Actin provides structural framework
Mineral salts are laid down on framework
Where are osteocytes found?
Buried in the calcified structure of the bone
In the blood
In the cancellous bone
What define osteoblasts?
Multiple nuclei
Perfectly spherical structure
Spine like projections for latching onto bone
Define bone remodelling
A gradual process of bone reabsorption and rebuilding
The total breakdown of bone for its rebuilding
Alteration of the collagen network that changes bone structure
How much bone is being remodelled at any one time?
5%
7%
13%
Which is faster- bone digestion or regeneration?
Digestion (2 months) Regeneration (2 weeks)
Digestion (2 weeks) Regeneration (2 months)
