Part 3: Clavicle, Humerus & Elbow

Location of conoid tubercle

Close to the acromial end

Seen in the inferior/ posterior aspect

Muscles that move the humerus

• 9 muscles involving the shoulder joint

  • 7 scapular

  • 2 axial

Muscles that move the humerus: Scapular Muscles

1. Deltoid: surrounds the shoulder joint, not involved in forming rotator cuff

2. Subscapularis 

3. Supraspinatus

4. Infraspinatus 

5. Teres Major: origin:  inferior angle of the scapula; Insertion: Bicipital ridge 

6. Teres Minor

7. Coracobrachialis

   

Muscles that move the humerus: Axial Muscles

1. Pectoralis Major: Origin: medial clavicle, sternum & costal cartilage of the 1st or 2nd to 6th or 7th ribs. Insertion: Bicipital ridge of humerus 

   

2. Latissimus Dorsi: Origin: Spinous process of T6-T12, iliac crest, posterior lumbar fascia & ribs 9-12. Insertion: bicipital groove of humerus 

   

Define/ Explain the intertubercle groove

aka bicipital groove

separates the greater & lesser tubercles of the humerus

Ligaments associated with the elbow

• Ligaments

  • 3 ligaments bind elbow joint

1. Annular ligament of radius

2. Radial collateral/ external 

3. Ulnar Collateral/ internal 

Where can you find fat pads in the elbow

• Fat Pads: situated over the fossae of the humerus

  • Coronoid 

  • Radial 

  • Olecranon:

  

Which fat pad is the largest

Olecranon