Lecture5: Bone Structure Flashcards
Name a compact bone
Clavicle
Where are Compact bones?
Diaphysis of long bones
Where are Cancellous bones?
Epiphysis of long bones
Which bone covering has osteoblasts?
Periosteum
Which bone layer has one cellular layer?
Endosteum
Which bone type has interstitial lamellae?
Compact bones
What are lamellae made of?
Osteocytes and collagen bundles
Where else can we find cancellous bones?
Between the outer and inner tables of flat bones
Name a characterizing histological feature of cancellous bone
Bone trabechulae
Where are intramembranous bone formations found?
Flat bones
What is found in richly vascularized mesenchymal tissue?
Intramembranous bone formation
What do osteoblasts secrete?
Bone matrix
What characterizes primary bones?
Abundant osteocytes and irregular collagen
Which bone type has more mineral content?
Secondary bone
How do osteocytes communicate in secondary bone?
Canaliculi
Which layer does the endosteum only have?
Cellular layer
What is the inner cellular layer of the periosteum responsible for?
Osteoblasts and osteoproginator cells
What is the external callus made of?
Hyaline cartilage and woven (primary) bone
