Bone Flashcards
What is immature bone?
Bone with osteocytes fairly randomly arranged
What is mature bone?
Bone with osteocytes arranged in concentric lamellae of osteons
What is an osteon?
Cylindrical concentric layers of compact bone which surround haversian canal
How does bone differ from cartilage?
It’s vascular
Give three characteristics of bone
Can withstand stress, Responds to stress and strains via growth, Sensitive to pain, Contains cells, fibres and ground substance
Give four functions of bone
SupportProtectionMineral storageHaemopoieses
What are two forms of bone?
Compact and spongelike (dense and cancellous)
What is haemopoiesis?
Formation of blood cellular components
What is the structure of compact bone?
Osteons with central haversian canal, which communicate via volkmanns canals
What is a haversian canal?
A neurovascular canal
How do osteocytes connect to each other?
Caliculi
What is spongy bone? (also known as cancellous and medullar bone)
Meshwork of trabeculae filled in with marrow
Two different types of marrow?
Red - Red blood cell synthesisYellow - Adipose tissue
What is marrow cavity lined with?
Endosteum
What is endosteum?
Thin layer of connective tisswue which lines the medullarly cavity