Pectoral region and axilla

Branches of left thoracoacromial artery, close-up view

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Image #89-6

Pectoral region and axilla

Branches of left thoracoacromial artery, close-up view

1. Clavicle (covered by periosteum)
2. Upper pointer: Subclavius muscle Lower pointer: Coracoclavicular fascia
3. Clavicular part pectoralis major muscle (cut off)
4. Tendon of origin of subclavius muscle
5. Left pointer: Subclavian trunk (one of several subclavian lymphatic trunks) Right pointer: Axillary lymph node (of subclavian group)
6. Upper pointer: Clavicular branch of thoracoacromial artery Lower pointer: Thoracoacromial vein (cut off)
7. Branches of lateral anterior thoracic nerve
8. Pectoralis minor muscle
9. External intercostal muscle
10. Lymph node in deltopectoral triangle
11. Deltoid muscle
12. Articular branch of anterior thoracic nerve to acromioclavicular and shoulder joints
13. Acromial branch thoracoacromial artery
14. Anterior lateral thoracic nerve
15. Cephalic vein
16. Branch to deltoid of thoracoacromial artery
17. Axillary connective tissue
18. Pectoral branch of thoracoacromial artery
19. Pectoralis major muscle (reflected laterally)