Bone Growth And Homeostasis Flashcards
What is a long bone growth in length?
It is referred as interstitial growth (cartilage growth)
What is growth in bones diameter?
It is referred as appositional growth (new matrix on outside)
What are the four waysof blood cells?l going into bone?
- Nutrient artery and vein
- Metaphysical arteries and vein
- Epiphyseal arteries and veins
- Periosteal artieries and veins
What is the nutrient artery and vein?
Supply the diaphysis of a long bone; usually just one nutrient artery and vein per bone
What is metaphysical arteries and veins?
Supply The diaphyseal side of the epiphyseal plate
What is Epiphyseal arteries and veins
Supply the epiphysis
What is periosteal arteries and veins?
Supply blood to the external circumferential lamellar and superficial osteons
What does growth, maintenance. And repair depend on?
Hormones, vitamins, and exercise
What si hormones do?
- Alter the rates of osteoblast and osteoclast activity
- regulate calcium lvls in the blood
What do vitamins do?
Needed for normal bone growth and maintenance
What does exercise do?
- increase in bone density by increased osteoblast activity
What is Fracture repair? What’s the healing process?
Fracture repair is break in bones
1. Fracture hematoma forms
2. Fibrocartilagunous callus forms
3. A bony callus forms
4. The bone is remodeled
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