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Lecture 9
Articulations
17
Anatomy
Undergraduate 2
09/27/2010

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Term
synarthroses
Definition
-bones held together by fibrous CT
-very stable
-non movement occurs
-ex. sutures of the skull
Term
amphiathroses
Definition
-bones held together by fibrocartilage pads/discs
-bound by CT (ligaments)
-limited motion occurs
-ex. intervertebral discs, symphysis pubis, sacroilliac joint
Term
diathroses (synovial joint)
Definition
-enclosed in a fibroelastic joint capsule
-a membrane lines the capsule and joint cavity and produces synovial fluid for lubrication
-articulating ends are covered with hyaline cartilage
-ligaments and tendons support these joints
Term
bursae
Definition
small sacs filled with synovial fluid
Term
diarthrotic joints
Definition
pivot, condyloid (ellipsoidal), gliding, hinge saddle, ball and socket
Term
pivot joint
Definition
-uniaxial around a central axis
-ex. atlas/axis, proximal radioulner joint
Term
condyloid (ellipsoidal)
Definition
-biaxial movement
-flexion/extension, abduction/adduction
-ex. metacarpalphalangeal (knuckles), radiocarpal
Term
gliding joint
Definition
-side to side movement
-intercarpal (wrist)
-intertarsal (ankle)
-vertebrae
-ribs
Term
hinge joint
Definition
-uniaxial movement
-flexion/extension
-ex. elbow, knee, fingers, TMJ
Term
saddle joint
Definition
wide range of motion
-carpometacarpal joint of thumb
Term
ball and socket
Definition
-multiaxial movement (greatest range)
-shoulder and hip
Term
ligaments
Definition
-bone to bone
-composed of regular dense CT
-provide stability for joints
-reduce flexibility and restricts movement
-poor vascularization- heals slowly
Term
TMJ
Definition
-temporal mandibular joint
-combo of hinge and gliding joint
-3 ligaments
Term
vertebral column ligaments
Definition
posterior is weaker and thinner
Term
vertebral column ligaments
Definition
posterior is weaker and thinner
Term
ankle ligaments
Definition
-deltoid joins the tibia and talus (strongest)
-weaker ligaments are lateral (connect fibula to talus and calcaneous)
Term
RICE
Definition
rest, ice, compression, elevation
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