20 Questions
What is the main component of an osteon in compact bone?
Concentric lamellae
What is the term for the thin plates of bone found in spongy bone?
Trabeculae
What type of ossification occurs within fibrous connective tissue membranes?
Intramembranous ossification
What is the term for the canals that communicate between osteons in compact bone?
Volkmann canals
What type of cells differentiate into osteoblasts during bone formation?
Mesenchymal cells
What is the process by which new bone tissue is added beneath the periosteum?
Appositional growth
What is the function of osteogenic cells in bone growth?
They differentiate into osteoblasts
What is a characteristic feature of bone matrix?
It is calcified
What is the difference between bone and cartilage growth?
Bone grows by appositional growth, while cartilage grows by interstitial growth
What is the fate of osteoblasts in bone growth?
They cannot divide, not even to replace themselves
What is the approximate percentage of organic materials in the dry weight of bone?
25%
What is the primary component of the inorganic materials in bone matrix?
Calcium in the form of hydroxyapatite
Which of the following cells is NOT involved in bone formation and maintenance?
Osteoclasts
What is the function of the endosteum?
To line the bone marrow cavity and spaces
What would be the result if the organic bone matrix were removed?
The bone would become more fragile
What is the primary function of osteoblasts in bone development?
Form and secrete bone matrix proteins
What is the purpose of small matrix vesicles in osteoblasts?
Contain alkaline phosphatase enzyme
What is a characteristic feature of osteocytes?
Branched shape with cytoplasmic processes
What is the origin of osteoclasts?
Fusion of monocytes
What is the consequence of osteocyte death in bone tissue?
Resorption of the calcified matrix
Learn about the structure of compact bone, including its arrangement in osteons or Haversian systems, concentric lamellae, Haversian canal, osteocytes, lacunae, and Volkmann canals.
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