Lecture 8: Shoulder Complex & Joints Flashcards
supraclavicular nerves
cervical plexus C3-4
skin over clavicle, upper pec major
joints within the shoulder complex
sternoclavicular
acromioclavicular
glenohumeral
sternoclavicular joint
sternum to clavicle
synovial saddle joint
triaxial
ligaments of sternoclavicular joint
sternoclavicular ligaments: ant and post
costoclavicular ligament
interclavicular ligament
acromioclavicular joint
acromion process of scapula to clavicle
synovial plane joint
triaxial
movements of acromioclavicular joint
scapular rotation
winging of medial border
tipping of inferior angle
ligaments of acromioclavicular joint
acromioclavicular: super and inferior
coracoclavicular: trapezoid and conoid
describe the coracoclavicular ligament
made up of two small ligaments
trapezoid — most lateral
conoid — most medial
glenohumeral joint
humerus meets scapula
synovial ball and socket
triaxial
movements of the glenohumeral joint
flexion/extension
medial/lateral rotation
add/abduction
circumduction
ligaments of glenohumeral joint
glenohumeral: sup, mid, inf
Coracohumeral
coracoacromial: check up/down mvt of head
describe the glenohumeral joint capsule
very lax
up to 1 inch of passive retraction
subdeltoid bursae
glenoid labrum
a fibrocartilage meniscus that helps to deepen the surface of glenoid fossa
sternoclavicular ligament
sternoclavicular joint
limit clavicle head mvt in ant/post directions
costoclavicular ligament
sternoclavicular joint
main check for elevation
also, depression and traction
