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chapter 8
joints
21
Anatomy
Undergraduate 2
10/01/2014

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Term
what are the three structures of joints
Definition
fibrous- move little to none
cartilaginous- move slightly
synovial- uniaxial, biaxial, multiaxial
Term
3 functions of joints
Definition
synarthrosis- no movement
amphiarthrosis- slightly moveable
diarthrosis- freely moveable
Term
sutures
Definition
FIBROUS JOINT
*periosteum continuous between bones
*fontanels
Term
syndesmoses
Definition
FIBROUS JOINT
bones far apart joined by ligaments
some movement may occur
**radioulnar syndesmoses
Term
gumphoses
Definition
FIBROUS JOINT
pegs in sockets
Term
synchondroses
Definition
CARTILAGINOUS JOINT
hyaline cartilage
*epiphyseal plates, sternocostal, sphenoocipital
Term
symphyses
Definition
CARTILAGINOUS JOINT
*symphyses pubis
*intervertebral discs
Term
Synovial joints
Definition
most complex
Term
types of uniaxial synovial joints
Definition
gliding/plane
hinge
pivot
Term
types of biaxial synovial joints
Definition
saddle, ellipsoid (atlantoocipital)
Term
types of multiaxial synovial joints
Definition
ball and socket
Term
joint capsule
Definition
synovial membrane and fibrous capsule
Term
joint cavity
Definition
filled with synovial fluid
Term
bursa
Definition
extension of joint cavity, sac
Term
articular discs
Definition
tempermandibular, sternoclavicular, acromiolavicular
Term
menisci
Definition
knee pad... fibrous cartilage
Term
glenohumeral joint
Definition
shoulder
most movement!!!!
Term
Tempomndibular joint
Definition
TMJ
plane and ellipsoid joint
excersion, protraction/retraction, depression/elevation
Term
circumduction
Definition
circling arm around
Term
protraction
Definition
moving jaw anteriorly (jutting forward)

retraction= bringing back
Term
excursion
Definition
mandible left and right (medial and lateral excursion)
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