Skeletal System : Bone Formation and Growth

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Questions and Answers

Bone is formed in the body in two ways

  • Irregular bone & Flat bone Endochondral (Cartilage) bone formation & Intramembranous (Intraosseous) bone formation
  • Endochondral (Cartilage) bone formation & Intramembranous (Intraosseous) bone formation (correct)
  • Epiphyseal plate & Intramembranous (Intraosseous) bone formation
  • Endochondral (Cartilage) bone formation & Flat bone

Endochondral Bone characteristics ?

  • Majority of bone formation. Most bones start as cartilage in the fetus (like a template). Long bone formation begins in the primary growth centre in epiphysis and radiates outwards. Cartilage is removed gradually as bone is created.
  • Majority of bone formation. Most bones start as cartilage in the fetus (like a template). Long bone formation begins in the primary growth centre in diaphysis and radiates outwards. Cartilage is removed instantly as bone is created.
  • Majority of bone formation. Most bones start as marrow in the fetus (like a template). Long bone formation begins in the primary growth centre in diaphysis and radiates outwards. Cartilage is removed gradually as bone is created.
  • Majority of bone formation. Most bones start as cartilage in the fetus (like a template). Long bone formation begins in the primary growth centre in diaphysis and radiates outwards. Cartilage is removed gradually as bone is created. (correct)

Endochondral Bone Full skeletal maturity the epiphyseal plates ossify

True (A)

Intramembranous Bone Formation only occurs where?

<p>Certain skull bones (B)</p> Signup and view all the answers

Intramembranous Bone Formation Intramembranous Bone Formation occurs with Bone formation in the __________ tissue membranes that cover the brain in the developing fetus. This process creates the flat bones of the___________ , which surround the brain.

<p>fibrous, cranium</p> Signup and view all the answers

Which are the best healing tissues in the body?

<p>bones</p> Signup and view all the answers

where does fractures usually occur?

<p>long bones</p> Signup and view all the answers

3 factores for optimal healing

<p>Alignment,Immobilisation,Time (A)</p> Signup and view all the answers

Alignment is also known as ________ of a fracture (or “fx”)

<p>reduction</p> Signup and view all the answers

Fractured ends must be brought further apart in reasonable alignment and kept from moving apart during the healing process

<p>False (B)</p> Signup and view all the answers

Interrnal and external devices (such as plates, pins and screws implanted during surgery) are used to reduce a fx They may remain in the bone or be removed later

<p>True (A)</p> Signup and view all the answers

Bone Healing- Immobilisation

<p>Also called “fixation” of a fracture (B)</p> Signup and view all the answers

Length of time external fixators are in place depends on________________ – all affect healing time

<p>species, age, activity level</p> Signup and view all the answers

What are the types of internal and external fixtures?

<p>pins, plates, screws, splints, casts</p> Signup and view all the answers

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