L03 - Shoulder Anatomy Flashcards
label the main skeletal components of the shoulder
what are the main joints here
what makes up pectoral girdle
pto
---- clavical humerus scapula pectoral girdle coracoid acromion intertubercular sulcus / bicipital groove greater tubercle lesser tubercle glenohumeral joint acromioclavicular joint
ligaments of the shoulder
pto , labelllll
which one has superior, middle and inferior
which one provides support for the head of the humerus and prevents superior dislocation
acromioclavicular
coracoclavicular
coracoacromial
coracoclavicular
—– what is it what does it do
coracoacromial
—– what is it what does it do
glenohumeral joint
label diagram
also what does it allow for
abduction of the arm
what muscle(s) allow this what is origin and insertion
what nerve supplies
what do the different fibres do-
deltoid muscles
what does it do – different parts of it
origin and insertion
–
what performs adduction of the arm
label diagram
what action of the arm do latissimus dorsi and pec major do?? label
in adduction and abduction of the arm, what else can help accomodate the movement? and what facilitates this
–
what muscles flex the arm?
label them
label
short and long heads of the biceps
coracobrachialis
what do these muscles do also what else helps this action
what muscles extends the arm? label on diagram
what do muscles near it do
why is the glenohumeral joint unstable?
what type of dislocation is the most frequent and why
what factors increase stability? – list
what does the coracoacromial arch do?
glenohumeral joint?
glenoid labrum?
imagine it then label it
what are there origins of the long head of biceps and triceps? label
tendons of the rotator cuff muscles– where do they insert, fuse
rotator cuff muscles
which ones are there
where isnt covered
label
what is the function of each of them and or/ins
rotator cuff muscles
find supraspinatus infraspinatus subscapularis teres minor
what is the origin and insertion of these muscles?
label, function
what is teres major, where is it what does it do
what is the most common rotator cuff injury and why does this occur
supraspinatus impingement
what is it
why does this happen, who commonly gets it
what is the blood supply to rotator cuff muscles, from where
what are the branches called
label diagram
sublavian axillary suprascapular subscapular dorsal scapula thyrocervical trunk
label them
what do they supply
what is the nerve supply to the shoulder from? which bit
where is the nerve supply located
what supplies: supraspinatus and infraspinatus deltoid and teres minor triceps brachii subscapularis, teres major latissimus dorsi
nerve supply of shoulder
what nerves are involved
what cords supplies shoulder
from this, what branches are there
posterior cord (and extra one)
what does axial and radial nerve supply
upper and lower subscapular nerves
suprascapular nerves
thoracodorsal nerves
