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Stack #16832
| Question | Answer |
|---|---|
| The Subscapularis is located on the _______on the Scapula | Anterior |
| Describe the path of the supraspinatus from origen to insertion | originates on the supraspinous fossa of the scapula and travels laterally under the acromian process to insert on the greater tubercle of the humerous |
| name the rotator cuff muscles that are direct or complete synergists | Infraspinatus/Teres Minor |
| Describe the significance of the rotator cuff muscles | stabilizes the head of the humerous |
| What 4 muscles make up the rotator cuff | Supraspinatus, Infraspinatus, Teres Minor, Subscapularis |
| Which bone do the rotator cuff muscles move on | Humerous |
| Which joint do the rotator cuff muscles act on | Glenohumeral joint |
| Which fibers of the Deltoid Laterally Rotate the shoulder at the glenohumeral joint | posterior fibers |
| 3 muscles that are synergist's to each other in extension of glenohumeral joint | Posterior Deltoid, Teres Minor, Infraspinatus |
| Origin of the Deltoid | lateral 1/3 of the clavicle, acromian process, spine of the scapula |
| Insertion of the Deltoid | Deltoid Tuberosity |
| Action of Deltoid all fibers | ABduction of the shoulder at the glenohumeral joint |
| Action of Anterior Deltoid | Flexion, Medial rotation, horizontal ADduction at the glenohumeral joint |
| Action of Posterior Deltoid | Extension, Lateral rotation, horizontal ABduction at the glenohumeral joint |
| Origin of Supraspinatus | Supraspinous Fossa of the scapula |
| Insertion of Supraspinatus | Greater tubercle of the humerous |
| Action of Supraspinatus | ABduction of the shoulder at the Glenohumeral joint, stabilizes the head of the humerous at the glenoid cavity |
| Origin of Infraspinatus | Infraspinous Fossa of the scapula |
| Insertion of Infraspinatus | Greater tubercle of the Humerous |
| Action of Infraspinatus | Lateral rotation, Extension, ADduction, Horizontal ABduction,Stabilize the head of the humerous @ Glenoid cavity |
| Origin of Teres Minor | Superior 1/2 of lateral border of the scapula |
| Insertion of Teres Minor | Greater Tubercle of the Humerous |
| Action of Teres Minor | Lateral rotation, extension, ADduction, Horizontal ABduction, Stabilize head of humerous @ glenoid cavity |
| Origin of Subscapularis | Subscapular fossa of the scapula |
| Insertion of Subscapularis | Lesser tubercle of the humerous |
| Action of Subscapularis | Medial rotation, Stabilize the head of the humerous @ glenoid cavity |
| Why is the Deltoid its own Antagonist | Broad origin |
| Acronym for Rotator Cuff muscles | S.I.T.S |