The Shoulder Joint Medial Rotators Flashcards
Name The Shoulder Joint Medial Rotators
Subscapularis, Teres Major, Latissimus Dorsi, Pectoralis Major, Deltoid (Ant).
What is another term for medial rotation of the shoulder?
internal rotation
Subscapularis origin
medial 2/3rds of subscapular fossa on scapula
Subscapularis insertion
lesser tubercle of humerus
Subscapularis nerve supply
subscapular nerve C5, 6, 7
Subscapularis action
medial rot. & adduction of shoulder
Subscapularis function
First part of frontcrawl pull
Teres Major origin
lower 1/4 of lat. border & dorsal surface of the inferior angle of scapula
Teres Major insertion
medial lip of intertubercular groove on humerus
Teres Major nerve supply
lower subscapular C6. 7
Teres Major action
flexed arm ext.
adduction & medial rot. of humerus
Teres Major function
first part of frontcrawl pull
Latissimus dorsi origin
lat. aspects of thoracolumbar fascia (attached to spinous process & ligamentous attachments of lower 6 thoracic, lumbar vertebrae & sacrum)
outer lip of distal 1/3 of iliac crest
outer surface of lower 3 / 4 ribs
inferior angle of the scapula
Latissimus dorsi insertion
intertubercular groove of humerus
Latissimus dorsi nerve supply
thoracodorsal C6, 7, 8
Latissimus dorsi action
flexed arm ext.
adduction & medial rot. of humerus
Latissimus dorsi function
first pert of frontcrawl pull
Pectoralis Major origin
medial 1/2 of ant. surface of clavicle
lat. aspect of sternum body
Pectoralis Major insertion
lat. lip of intertubercular groove of humerus
Pectoralis Major nerve supply
pectoral: medial C8 & lateral C5, 6, 7
Pectoralis Major action
shoulder medial rot. & adduction
clavicular: shoulder flex.
sternal: shoulder ext. from flexed
Pectoralis Major function
first part of frontcrawl pull
Deltoid (Ant) origin
lat. 1/3 of ant. aspect of clavicle
Deltoid (Ant) insertion
deltoid tuberosity of humerus
Deltoid (Ant) nerve supply
axillary C5, 6
Deltoid (Ant) action
shoulder flexion & medial rot.
Deltoid (Ant) function
first part of frontcrawl pull
