Humerus Anatomy

 Humerus - Anterior view

1. Greater tuberosity: supraspinatus, infraspinatus, teres minor insertions site.
2. Intertubercular groove: long head of biceps tendon runs throught it.
3. Humeral head: average 23mm radius; 19mm thickness; center is offset 7mm medially and 2mm posterior to humeral axis; retroverted 19 degrees; inclined 41 degrees.
4. Lesser tuberosity: subscapularis insertion site.
5. Surgical neck: common fracture site.
6. Humeral shaft
7. Medial column
8. Coronoid fossa
9. Medial epicondlye
10. Trochlea
11. Capitellum
12. Lateral epicondyle
13. Lateral column

Humerus - Posterior View

1. Greater tuberosity
2. Humeral head
3. Humeral shaft
4. Medial column
5. Olecranon fossa
6. Medial epicondyle
7. Trochlea
8. Capitellum
9. Lateral epicondyle
10. Lateral column

Humerus - Lateral View

1. Lessor Tuberosity
2. Intertubercular groove
3. Greater Tuberosity
4. Humeral head
5. Center of humeral head
6. Othopedic/anatomic axis of humerus
7. Humeral shaft
8. Lateral epicondyle
9. Capitellum
10. Coronoid fossa

Humerus - Medial View

1. Humeral head: articulates with glenoid
2. Lesser tuberosity: insertion of subscapularis tendon
3. Humeral Shaft
4. Trochlea: articulates with ulna
5. Medial epicondyle: origin of hand and wrist flexors