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Anatomy and Physiology: Periosteum and Endosteum Composition

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Anatomy and Physiology: Periosteum and Endosteum Composition

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Questions and Answers

What is the function of the periosteum in bones?

Provides a smooth surface for joint movement

Supports the bone structurally

Acts as a source of bone-forming cells (correct)

Helps in blood cell formation

Which part of the bone is covered by the periosteum?

Exterior except articular cartilage (correct)

Interior including the Haversian canals

Articular cartilage

Endosteum

Where are osteocytes located within the bone structure?

On the surface of the bones

Within lacunae in the bone matrix (correct)

Within the Haversian canals

In the periosteum

What is the role of the endosteum in bones?

Lines all internal cavities of bones Signup and view all the answers

Which component is mainly found in the outer fibrous layer of the periosteum?

Muscle fibers Signup and view all the answers

What is a primary function of osteoclasts in bone remodeling?

Maintaining bone resorption Signup and view all the answers

What is the primary function of osteoblasts in bone formation?

Produce bone matrix osteoid Signup and view all the answers

What type of cells line the surfaces of a developing bone as a continuous layer surrounding the bone marrow?

Osteoblasts Signup and view all the answers

Which structure originated from when osteoblasts become trapped in the matrix they secreted?

Osteocytes Signup and view all the answers

What is the function of Haversian canals in bone structure?

Provide channels for blood vessels and nerves Signup and view all the answers

Which component of bones is responsible for maintaining a local concentration of calcium and phosphate ions?

Endosteum Signup and view all the answers

What do osteoblasts primarily produce during bone formation?

Bone matrix osteoid Signup and view all the answers

What is the function of osteoclasts in the microstructure of bone?

Maintain calcium balance between bone & blood Signup and view all the answers

How is the microstructure of spongy bone characterized?

Trabeculae filled with red bone marrow Signup and view all the answers

Where are all osteocytes located in relation to their source of nutrition?

Close to the source of nutrition Signup and view all the answers

Which component is responsible for the organized formation seen in normal bone?

Collagen matrix Signup and view all the answers

What is the role of endosteum in bone structure?

Line the inner surface of bones Signup and view all the answers

In what way does osteoporosis develop according to the text?

Resorption surpasses formation by osteoclasts Signup and view all the answers