Articulations Flashcards
(37 cards)
An Articulation is
Where two or more bones meet
Structural classification of joints
Fibrous
Cartilaginous
Synovial
Fibrous joint are held together by
collagen fibers
Physical thing that holds the bones together
Cartilaginous joints are held together by
Held together by cartilage
Synovial joints are held together by
a joint capsule (space between your bones)
Functional classification of joints
Amount of movement at the joint
Synarthroses
Amphiarthroses
Diarthroses
Synarthroses allow
No movement allowed
Amphiarthroses allow
Allow slight movement
Diarthroses allow
Freely moveable joints
Diarthroses, Amphiarthroses, Synarthroses are all
Synovial joints
3 Fibrous joints are
Sutures
Syndesmosis
Gomphoses
Sutures are
Where bones have fused together, your suture lines are formed by fibers and are not movable so they are synarthrotic in adults
Attributes of Syndesmosis
Held together by ligaments
Are fibrous because made of collagen fibers
Slight movement so they are amphiarthrotic
Attributes of Gomphoses
Joints between the teeth and the alveolar socket
Connected by periodontal ligament
Types of Cartilaginous joints
Synchondroses
Symphyses:
Synchondroses are connected by
hyaline cartilage and do not move
Symphyses are connected by
fibrocartilage and allow slight movement
Example of Synchondroses
epiphyseal plate and costal cartilages
Example of Symphyses
pubic symphysis and intervertebral discs
Most of this in our body
Synovial joints
Synovial joints are
All diarthroses
Articulating bones are separated by
a fluid-containing joint cavity
Characteristics of synovial joints
Joint articular capsule Synovial fluid Articular cartilage Reinforcing ligaments Joint cavity
Joint articular capsule
Surrounds the space holding the bones together