Ligaments and joints Flashcards
Glenohumeral joint classification
Synovial, multiaxial, ball and socket
Synovial membrane of glenohumeral joint lines
Joint capsule
Booney grooves of joint capsule
Glenohumeral joint articular capsule attatchments
Medial to margin of glenoid fossa + labrum
Lateral to margin of shaft of humerus
Glenohumeral joint movements
Flexion and extension
Abduction and adduction
Internal and external rotation
Glenoid labrum explain
Fibrocartilaginous structure around glenoid fossa
Function: mobility, increased glenoid convexity
Glenohumeral joint articular capsule reinforcement
Rotator cuff muscle tendons
Long tricep tendon
Glenohumeral and coracohumeral ligaments
Coracohumeral ligament attatchments
Coracoid -> greater tubercle of humerus
Coracohumeral ligament prevents what
Prevents inferior and lateral dislocation of humerus
Coracoacromial ligament attatchments
Coracoid -> acromion
Coracoacromial ligament prevents
Superior dislocation of humerus
Glenohumeral ligament attatchments
Rim of anterior glenoid -> humerus
Glenohumeral ligament inferior role
Prevents anterior dislocation of humerus when fully flexed/abducted
Glenohumeral ligament superior role
Prevents inferior and lateral dislocation
Limits external rotation
Glenohumeral ligament middle role
Limits external rotation
Transverse humeral passes
Humeral tubercle
Transverse humeral role
Holds heads of biceps brachii in bicipital grooves
Acromioclavicular joint classification
Synovial, multiaxial, plane
Acromioclavicular joint articular surfaces
Acromial end of clavicle
Acromioclavicular joint articular capsule
Loose and reinforced by capsular ligaments
Coracoclavicular ligament attatchment
Coracoid -> clavicle
Coracoclavicular ligament concoid part attatchment
Concoid tubercle
Coracoclavicular ligament trazpeoid part attatchment
Trapezoid line
Coracoclavicular ligament concoid part limits what
Limits protraction
Sternoclavicular joint classification
Synovial, multiaxial, modified ball and socket
Coracoclavicular ligament trapezoid part limits what
Limits retraction
Sternoclavicular joint articular surfaces
Sternal end of clavicle (male)
Clavicular notch of sternum (female)
Sternoclavicular joint capsule
Strong and reinforced by capsular ligaments
Costoclavicular ligament attatchment
Rib 1 -> clavicle
Costoclavicular ligament limits
Limits elevation, protraction, retraction
Anterior sternoclavicular limits
Limits retraction
Posterior sternoclavicular limits
Limits protraction
Anterior sternoclavicular attatchment
Sternum -> clavicle
Scapulothoracic joint function
Allows scapula motion against the rib cage
Elbow joint clasification
Synovial, uniaxial, hinge
Posterior sternoclavicular attatchment
Sternum -> clavicle
Elbow joint articulations
Humeroulnar
Humeroradial