Shoulder FINAL Flashcards
5 articulations of the shoulder
- glenohumeral [ball and socket]
- sternoclavicular
- acromioclavicular (AC)
- coracoclavicular (CC)
- Scapulothoracic
most freely moving joint in the body, with poor joint stability
glenohumeral
what body part makes up the ball and socket of the glenohumeral joint
ball: head of humerus
socket: glenoid fossa of the scapula
what is unique about the sternoclavicular joint
only bone to bone articulation the shoulder has with the thoracic region/axial skeleton
what type points create the acromioclavicular joint
acromion process of the scapula and the clavicle
what is ligament injury at the acromioclavicular joint called?
AC separation or separated shoulder joint
what two parts comprise the coracoclavicular joint
coracoid process of the scapula, clavicle
the CC joint is a stable joint bound by what ligament?
coracoclavicular ligament
region between the scapula and thoracic wall
scapulathoracic joint
the scapula thoracic joint has ____ muscular attachments
17
Flexion of the shoulder in degrees? Extension?
0-180 deg
0-50 deg
3 PM’s shoulder flexion
coracobrachialis
anterior deltoid
Pec major
2 PM’s shoulder extension
Posterior Deltoid
Latissimus Dorsi
Abduction & Adduction of shoulder in degrees
ab - 0-180
ad - 180-0
2 PM’s of shoulder abduction
middle deltoid
supraspinatus