UE Shoulder Girdle Flashcards
What is the angle between the scapular plane and frontal plane?
30˚
What is the angle between the scapular plane and the clavicle?
60˚
What are the borders of the sternoclavicular joint?
Head of clavicle to manubrium of sternum
What do the scapulae sit upon at the scapulothoracic joint?
Sub-scapularis and serratus anterior
What type of joint is the sternoclavicular joint?
Synovial: ball-in-socket
What are the fibrocartilage pads of the sternoclavicular joint called?
Sternoclavicular discs
The sternoclavicular discs run from the ____________ to ___________
Superior head of the clavicle to the clavicular notch
What are the 3 functions of the sternoclavicular discs?
Decrease compressional stress
Increase bony fit
Prevent superior luxation of clavicle
What kind of ligaments are the anterior and posterior sternoclavicular ligaments?
Capsular
The anterior and posterior sternoclavicular ligaments run from ________ to ________
The head of the clavicles to the manubrium
What is the function of the anterior and posterior sternoclavicular ligaments?
Prevent anterior and posterior movement of head of clavicle
The interclavicular ligament is a _______ ligament
Capsular
The interclavicular ligament attaches from _______ to _______ it also attaches to________
From head of one clavicle to the head of other clavicle, also attaches to manubrium
The interclavicular ligament prevents:
Lateral translation
What kind of ligament is the costoclavicular ligament?
Extrinsic ligament
The costoclavicular ligament attaches from _________ to ______ and ________
From inferior medial clavicle to costal cartilage and first costal bone.
What is unique about the costal cartilage?
Only hyaline cartilage joint
The costoclavicular ligaments prevent:
Superior translation of clavicle
What kind of joint is the acromioclavicular joint?
Planar joint
What kind of movement does the acromioclavicular joint allow?
Gliding movement
What is the function of the acromioclavicular joint?
Increase ROM of Scapulae
What does damage to the acromioclavicular joint cause?
Decrease scapular ROM and Dependance upon movement at Glenohumeral Joint
What kind of ligaments are the inferior and superior acromioclavicular ligaments?
Capsular
The inferior and superior acromioclavicular ligaments prevent:
Superior luxation of clavicle
