Lecture 1 Joints Flashcards
What are the 3 structural classification of joints
Fibrous
Cartilaginous
Synovial
Name 3 places you would fine fibrous joints
Periodontal ligament Cranial sutures Interosseous membranes (forearm and leg)
Name 2 types of primary cartilaginous joint
Synchondrosis
Rib cage
Growing limb joint
Name 2 types of secondary cartilaginous joint
Hyaline and fibrocartilage
Symphysis
IV disc
Name the 6 types of synovial joints
- Plane
- Hinge
- Pivot
- Condylar
- Saddle
- Ball and socket
What is synovium
Synovial fluid produced by synovial membrane
What cells produce synovial fluid
Synoviocytes
What are type A synoviocytes
Look like macrophages
Remove debris
Synovial fluid production
What are type B synoviocytes
Viscous fluid Hyaluronic acid and lubricin Rapid turnover Small volumes Rick capillary network
Name 3 functions of synovial fluid
- Nutrition of cartilage (articular c., menisci/discs)
- Removal of waste products
- Lubrication
What is bursae
Fluid filled sac made up of synovial membrane
Reduced friction
How does ageing change synovial fluid and cartilage
Viscosity increases
Water content in cartilage decreases
