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Questions and Answers
What is the primary function of the epiphyseal plate?
What is the primary function of the epiphyseal plate?
- Serving as a site for muscle attachment
- Protecting the bone from wear
- Facilitating bone growth in length (correct)
- Surrounding the medullary cavity
The diaphysis of a long bone is primarily made up of spongy bone.
The diaphysis of a long bone is primarily made up of spongy bone.
False (B)
What type of marrow is found in the medullary cavity of the diaphysis?
What type of marrow is found in the medullary cavity of the diaphysis?
yellow, fatty marrow
The ________ is a layer of dense connective tissue covering the outer surface of bones.
The ________ is a layer of dense connective tissue covering the outer surface of bones.
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Match the following parts of a long bone with their descriptions:
Match the following parts of a long bone with their descriptions:
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Study Notes
Structure of Long Bones
- A long bone is made up of a diaphysis (shaft) and epiphyses (ends)
- Diaphysis:
- Contains a medullary cavity which is lined with endosteum
- The medullary cavity is filled with yellow fatty marrow
- The diaphysis is covered with a layer of compact bone
- Epiphyses:
- Made up of spongy bone surrounded by compact bone
- Spongy bone contains red marrow
- Epiphyseal Plate (Growth Plate)
- The epiphyseal plate is where diaphysis and epiphysis meet
- The epiphyseal plate is responsible for bone growth in length
- The epiphyseal plate is replaced by the epiphyseal line after bone growth is complete
- Periosteum:
- Dense connective tissue layer that covers the surface of a bone
- Provides an attachment site for muscles and tendons
- Supports bone growth in diameter (width)
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Description
Test your knowledge about the structure of long bones, including their components like diaphysis and epiphyses. This quiz covers the major functions of the epiphyseal plate and periosteum. Perfect for students studying anatomy and physiology.
