PT 5131 Lecture Notes - Subscapularis Muscle, Supraspinatus Muscle, Infraspinatus Muscle

• School: Northeastern University
• Department: Physical Therapy
• Course: PT 5131
• Professor: L Day

Document Summary

Infraspinatus: teres minor, subscapularis, stabilize glenohumeral joint. Middle facet of greater tubercle of humerus: pa, da, n: suprascapular nerve (c5, c6, a: external rotation of arm, stabilizes glenohumeral joint. Teres minor: pa, da, n: axillary nerve (c5, c6, a: external rotation of arm. Inferior facet of greater tubercle of humerus: stabilize glenohumeral joint. Superior facet of greater tubercle of humerus: pa, da, n: suprascapular nerve (c5, c6, a: begins abduction of arm (first 10-15 degrees, stabilize glenohumeral joint. Lesser tubercle of humerus: pa, da, n: upper and lower subscapular nerves (c5-c7, a: internally rotates arm, stabilizes glenohumeral joint. Rotator cuff interval: opening between subscapularis, supraspinatus and coracoid process, capsule is not reinforced by rc in this spot. Nerves of the rotator cuff: suprascapular nerve (c5, c6, innervates supraspinatus and infraspinatus, runs underneath supraspinatus, innervating it. Rotator cuff as a stabilizer: deltoid abducts glenohumeral joint, rotator cuff assists, inferior slide humerus, stabilization.