Joint classification Flashcards
What is a joint?
Where 2 or more bones meet
What are the 3 main types of joints?
Fibrous
Cartilaginous
Synovial
How much movement do Fibrous joints allow?
None
How much movement do Cartilaginous joints allow?
Very little
How much movement do Synovial joint allow?
Varied wide range
What are the 3 types of Fibrous joints?
Sutures
Gomphoses
Syndesmoses
Where are Suture joints found?
Inbetween sections of the skull
Where are Gomphoses joints found?
Where the teeth articulate with the Maxillae (upper) and Mandible (lower)
Where are Syndesmoses joints found?
Where bones are held together by interosseus membranes eg middle radioulnar joint
What are the 2 types of Catilaginous joints?
Synchondroses (Primary)
Symphyses (Secondary)
What do Synchondroses cartilaginous joints have?
Minimal/no movement
Hyaline cartilage
eg sterno-costal joint
What are Synchondroses cartilaginous joints?
A temporary joint with no movement
Joint between diaphysis and epiphysis of long growing bone
What do Symphyses cartilaginous joints have?
The end of bones are covered with Hyaline cartilage
Bones joined by disc of fibrocartilage and surrounding ligaments
Limited movement
What is an example of a Symphyses cartilaginous joint?
The joints between the vertebral bodies
What are the types of Synovial joints?
Hinge Saddle Plane Pivot Condyloid Ball & Socket
What do Hinge Synovial joints allow?
Flexion and extension only
eg elbow joint
What do Plane Synovial joints allow?
Gliding/Sliding movements
What do Pivot Synovial joints allow?
Rotation
eg proximal radioulnar joint
What do Condyloid Synovial joints allow?
Flexion Extension Adduction Circumduction eg metacarpelphalangeal joint
What do Ball & Socket Synovial joints allow?
Movement in several axis
eg Hip and shoulder joints
What does the stability of joints rely on?
Shape, size & arrangement of articulating surfaces
Ligaments
Tone of muscles
