Questions and Answers
What are the two forms of joint classification?
Describe the difference between the structural and functional classification of joints.
Structural is based on the major connective tissue type that binds together the bones. Functional is based on the degree of motion offered by the joint.
What are the three subclasses of the structural classification of joints?
Fibrous, cartilaginous, and synovial.
Describe the main features of the fibrous class of joints.
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Name an example of fibrous joints.
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Describe the main features of the cartilaginous class of joints.
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There are primary and secondary subclasses of which structural joint classification?
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What is the difference between primary and secondary cartilaginous joints?
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Name an example of a primary cartilaginous joint.
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Name an example of a secondary cartilaginous joint.
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Describe the main features of synovial joints.
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What two classes of structural joint have no joint cavity?
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Name the three classes of functional joints.
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Define synarthrosis.
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Name examples of synarthosis joints.
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Define amphiarthrosis.
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Name examples of amphiarthrosis joints.
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Define diarthrosis.
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Name examples of diarthrosis joints.
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Study Notes
Joint Classification Overview
- Joints are classified structurally and functionally.
- Structural classification is based on the connective tissue type binding bones.
- Functional classification considers the degree of motion allowed by joints.
Structural Classification
- Subclasses: Includes fibrous, cartilaginous, and synovial joints.
Fibrous Joints
- Linked by dense regular fibrous connective tissue.
- Characterized by minimal to no cartilage presence.
- Do not have a joint cavity.
- Permit little to no movement.
- Examples include sutures in the skull and gomphoses (tooth sockets).
Cartilaginous Joints
- Comprised of cartilage, with no joint cavity present.
- Allow little to no movement.
- Subclasses: Split into primary (hyaline cartilage) and secondary (fibrocartilage).
- An example of a primary cartilaginous joint is the costalchondral joint; secondary examples include intervertebral joints.
Synovial Joints
- Feature a synovial joint cavity that separates the articulating bones.
- Provide free movement.
- Commonly found in the appendicular skeleton.
Functional Classification
- Classes: Include synarthrosis, amphiarthrosis, and diarthrosis.
Synarthrosis
- Represents joints with no or restricted movement.
- Examples include sutures and gomphoses.
Amphiarthrosis
- Represents joints that allow some movement.
- Examples include the pubic symphysis and intervertebral discs.
Diarthrosis
- Represents joints that provide a broad range of movement.
- Examples include the hip and knee joints.
Key Points
- Fibrous and cartilaginous joints do not have a joint cavity.
- Each class of joints has specific characteristics defining movement and structure.
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Description
Test your knowledge on the classification of joints with these flashcards. Explore the structural and functional classifications, their differences, and the subclasses of structural joints. Perfect for anatomy students and enthusiasts alike.