Glenohumeral Joint (GH) Flashcards
label the boney features of the GH Joint
- head od humerus
- glenoid fossa
how stable is the GH joint
- not a lot of boney stabilitly
- designed for lots of freedom of movement
identify the movement
- flexion in the sagittal plane
- extension in the sagittal plane
identify the movement
- abduction
- adduction
identify the movement
- cross flexion
- cross extension
(or flexion and extension in the horizontal plane)
identify the movement
- external rotation of the GH joint
- internal rotation of the GH joint
identify the motion
- external/ lateral rotation
- internal/ medial rotation
label the scapula boney features
- spine of scapula
- acromion process
- supra spinous fossa
- infraspinous fossa
- glenoid fossa
label the scapular boney features
- acromion process
- coracoid process
- subscapular fossa
- glenoid fossa
- supraglenoid tubercle
- infraglenoid tubercle
identify the shoulder boney features
- anatomic neck of humerus
- lesser tubercle
- greater tubercle
- bicipital groove
- lateral lip of bicipital groove
- medial lip of bicipital groove
- surgical neck of humerus
- deltoid tuberosity
identify the ligament - what motion does it limit?
- coraco-acromial ligament
- does not limit any motion - does not cross a joint
identify the muscle
supraspinatus
identify the green outline - what is its function
- glenoid labrum
- acts as a seal for the joint
- often tears with dislocation of the shoulder
label the ligaments
- superior glenohumeral ligament (SGHL)
- middle glenohumeral ligament (MGHL)
- inferior glenohumeral ligament complex (IGHL complex)
- axillary pouch
identify the ligaments
- SGHL
- MGHL
- IGHL complex
which GH ligament originates from 1:00 on GH rim, what motion(s) does it limit?
- SGHL
- limits external/lateral rotation of the GH joint
- prevents anterior translation of the humerus relative ti the GH joint
which GH ligament originates from 2:00 on the GH rim, what motion(s) does it limit?
- MGHL
- limits external/lateral rotation of the GH joint
- prevents anterior translation of the humerus relative ti the GH joint
which GH ligament originates from 3:00 and inserts at 8:00 on the GH rim, what motion(s) does it limit?
- IGHL complex
- limits external/lateral rotation of the GH joint
- prevents anterior translation of the humerus relative ti the GH joint
the axillary pouch is _______ with _ bands
continuous, 2
