Articulations Flashcards
tendons
connects muscle to bone
ligaments
connects bone to bone
bursae
“pillow of fluid”
small sacs lined with synovial membrane and filled with synovial fluid
cushions between bone, muscles, tendons
tendon sheath
synovial fluid-filled tubular sac wrapped around cord-like tendon
cushions tendon when rubbing against bone, muscle, or other tendons
protects tendon
menisci
fibrocartilage disc between bones to allow contouring of synovial joint to adjust to changing joint shape
c-shaped
provides extra surface
fat pad
fat pads located at periphery of joints which provide packing and fill spaces created when the joint cavity changes shape
cushions articular structures
EX: elbow, knee, hip
Fuctional Joints of the Body
- Syarthrosis Joints - No Movement
- AmphiarthrosisJoints - Little Movement
- Diarthrosis Joints - Variable Movement
Structural Joints of the Body
- Fibrous Joint - connected by fibers
- Cartilaginous Joint - connected by cartilage
- Synovial Joint - connected by joint cavity
Synovial Joint
- Variable movement allowed (always diarthrosis)
- The joint cavity connects bones with fluid-filled joint complex
- Most joints of the body (especially in appendages)
Diarthrosis Joint
- Nonaxial
- Uniaxial
- Biaxial
- Triaxial
Nonaxial
no plane of movement
Gliding
Uniaxial (monaxial)
one plane of movement
sagittal plane
horizontal plane
hinge and pivot
Biaxial
two planes of movement
sagittal plane + coronal plane
sagittal plane + horizontal plane
saddle and condyloid
Triaxial
three plane of movement
sagittal plane + coronal plane + horizontal plane
ball and socket
Non-Synovial Joints
- Fibrous Joint
- Sutural Joints
- Syndesmosis Joints
- Gomphosis Joints
- Cartilaginous Joints
- Synchondrosis Joints
- Symphysis Joints