Gomphosis, suture, syndesmosis
Types of Fibrous Joints
Gomphosis
Fibroblasts in periodontal ligaments play an essential role in responses to mechanical force by remodeling and replacing damaged matrix components.
A specific joint that anchors the tooth to its socket
Suture
Bones connected by dense irregular connective tissue with no joint cavity
Specific to skull
Syndesmosis
Dense fibrous tissue with an oblique orientation
Specific to two adjacent bones
Cartilaginous Joints
Hyaline cartilage or fibrocartilage between articulating surfaces (lack joint cavity)
Synchondroses, symphyses
Types of cartilaginous joints
Synchondroses
Contain hyaline cartilage
Epiphyseal plate, joint between first rib and sternum, costochondral joints
Symphyses
Contain fibrocartilage
Pubic symphysis, intervertebral joints
Synovial Joints
Bones are covered with articular cartilage (hyaline cartilage).
Sensory nerve fibers
Detect pain and joint stretching.
Synovial Fluid
Found within joint cavity, viscous and reduces friction.
Contains hyaluronic acid and lubricin
Type B Synoviocytes, synovial membrane
Manufactures synovial fluid
Type A Synoviocytes
Phagocytic white blood cells that capture and remove debris.
Bursa
Some joints have an extension of the synovial membrane— this contains synovial fluid and acts as a cushion.