Joints Flashcards
Which joints are primarily meant for growth and example
Immovable joints like primary cartilagenous joints
How is mandibular bone present in infants
As 2 bones
How is frontal bone is present in infants
As 2 bones
How coccyx and saccrum are presnt in infants
As 4 and 5 bones respectively
Structural classification of bones
1) fibrous joints
2) cartilagenous joints
3) synovial joints
Types of fibrous joints
1) sutural joint
2) syndrsmosis
3)gomphosis
Types of cartilagenous joints
1) primary- synchondrosis
2) secondary - amphiarthrosis
Types of synovial joints 7 types
1) ball and socket
2) hinge joint
3)plane joint
4) saddle/ stellar joint
5) condylar joint
6) elipsoid joint
7) pivot joint
Classification according to degree of mobility
1) diarthrosis- freely movable
2) amphiarthrosis - slightly movable
( secondary cartilagenous joints)
3) synarthrosis - immovable
Parts of a vertebral disk
1) covered by hyaline cartlage
2) annulus fibrosus
3 nucleus pulposus
Synarthrosis characters 2 points
1) has tough fibrous tissue
2) bones dovetailed into one and other
Amphiarthrosis characters 2 points
1) articulating bones and cartilage is covered by hyaline cartillage
2) fibrous ligaments hold the cartillage in place
Diarthrosis characters 4 points
1) freely movable but resistricted by ligaments
2) ligaments are elastic ct
3) joint capule covered by synovial membrane except articulating surface
4) intra capsular tendons and ligaments are covered by syn memb.
What is complex joint and 2 examples
When the joint is divided by intra articular disc.
Temporomandibular joint
Sternoclavicular joint
Sutures characters
1) present only in skull
2) sutures in infants are called frontalles
