Ch 9 Flashcards
Suture, syndesmosis , gomphosis
Mobility synarthrosis amphiarthosis
Fibrous
Synchondrosis, symphysis
Immobile and slightly movable
Cartilaginous
Plane, hinge, pivot, condylar, saddle, ball and socket
Diarthrosis
Synovial
Dense regular connective tissue no joint cavity
Fibrous joints
United by cartilage, lack joint cavity not highly movable
Cartilaginous joints
Fluid filled joint cavity
Articular cartilage
Articular capsule
Synovial fluid
Extracapsular
Intracapsular
Synovial joints structures
Contains a disc of fibrocartilage (meniscus)
At TMJ and knee joint
articular discs
Closed bags of lubricant, reduce friction bw structures
Bursa and tendon sheaths
Flexion, extension, abduction, adduction, circumduction
Angular movments
Humerus or femur rotate around long axis moving anterior surface of arm or thighs toward midline
Internal (medial) rotation
Humerus or femur rotate around their long axis moving anterior surface of arm or thigh away from midline
External (lateral) rotation
Supraspinatus, infraspinatus, teres minor, and subscapularis
Rotator cuff muscles
Head of humerus displaced in anterior and inferior direction
Shoulder dislocation
Head of radius slips out from under annular ligament
Radial head subluxation
Medial epicondyle of femur to medial condyle of tibia, meniscus is directly attached
Prevents abduction
(Tibial) Medial collateral ligament
