Articulations Flashcards
The 6 Joint Structures
Tendons, Ligaments, Bursae, Tendon Sheath, Menisci, and Fat Pad
What is an articulation?
A joint; where two bones come together
Tendons
Connects muscle to bone
Ligaments
Connects bone to bone
Bursae
Small sacs lined with a synovial membrane and filled with synovial fluid. Cushions between bones, muscle, and tendons.
Tendon Sheath
Synovial fluid filled tubular sac wrapped around a cord-like tendon. Cushions tendon when rubbing against a bone, muscle, or other tendon.
Menisci
Fibrocartilage disc between bones to allow contouring of synovial joint.
Fat Pad
Pad of fat located around joints for protection and cushion.
What are the three functional joints of the body?
Synarthrosis (no movement), amphiarthrosis (little movement), and diarthrosis (variable movement)
Functional joints are based on the _______.
Movement between bones
What are the three types of structural joints?
Fibrous Joints, Cartilaginous Joints, Synovial Joints
Fibrous joints are connected by
Fibers
Cartilaginous joints are connected by
Cartilage
Synovial joints are connected by
Joint cavity (filled with synovial fluid)
Which type of joints make up the majority of bone comnections?
Synovial Joints
What is the functional joint of the synovial joint?
Diarthrosis (variable movement)
________ connects bones with a fluid-filled joint complex.
Joint Cavity
Name the four sub-classifications for diarthrosis joints
Monoaxial, biaxial, triaxial, nonaxial
Name the four sub-classifications for synovial joints
Hinge/pivot, condyloid/saddle, ball and socket, gliding
Nonaxial
Diarthrosis functional joint with no plane of movement
Monoaxial. What plane/s?
One plane of movement; saggital plane and horizontal plane
Biaxial. What plane/s?
Two planes of movement; saggital plane + coronal plane, and saggital plane + horizontal plane
Triaxial. Plane/s?
Saggital + Coronal + Horizontal
Name the three fibrous joints
Sutural joints, syndesmosis joints, gomphosis joints
Describe sutural joints
Short fibers connect bones, no movement allowed (synarthrosis), seen in bones of the skull
Describe syndesmosis joints
Longer fibers connect bones, little movement allowed (amphiarthrosis), seen in long bones arms/legs
Describe gomphosis joints
Short fibers that connect teeth to the jaw, no movement allowed (synarthrosis)
Name the 2 Cartilaginous Joints
Synchondrosis Joints & Symphysis Joints
Describe synchondrosis joints
Hyaline cartilage connects the bones, no movement allowed (synarthrosis), seen in rib number 1 and sternum only
Describe Symphysis Joints
Fibrocartilage connects bones, little movement allowed (amphiarthrosis), seen in intervertebral discs (pubic symphysis)
