Joints Flashcards
What are the 3 main classifications of joints?
- Synarthroses
- Amphiarthroses
- Diarthroses
What are synarthroses joints?
Joints that have very limited movement
What are the three subtypes of synarthroses joints?
- Synostosis
- Synchondroses
- Syndesmosis
What are synostosis joints? Give example.
-Subtype of Synarthroses joints
-Connected by bone
ex=skull
What are synchondroses joints? give example.
-Subtype of Synarthroses
-connected by hyaline cartilage with very little movement
ex= 1st rib to sternum
What are syndesmosis joints? give example
-subtype of synarthroses
-connected by dense connective tissue
ex= Pubic symphesis
What are Amphiarthroses joints? Give example
-Joints that permit slight movement
ex= intervertebral disc
What are Diarthroses joints? Give example
-Joints that permit relatively free movement between connected bones
ex=long and short bones
What are the two components that make up an Amphiarthrosis joint?
- fibrocartilage
2. a viscous gel-like substance
What is the annulus fibrosus?
A ring of fibrocartilage found in intervertebral discs
What is the Nucleus Pulposus?
A viscous gel-like substance found inside the annulus fibrosus of intervertebral discs
What is contained within the articular cavity of Diarthroses joints?
Synovial fluid
Is there perichondrium on articular cartilage?
NO
What is the major component of synovial fluid?
Hyaluronic acid
What produces synovial fluid?
the synovial membrane