Dissection of breast and anterolateral thoracic wall

External layer of muscles in inframammary region

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Image #115-1

Dissection of breast and anterolateral thoracic wall

External layer of muscles in inframammary region

The fascia has been removed from the latissimus dorsi (3), serratus anterior (4) and external oblique (9) muscles on the right side. Cutaneous nerves and vessels have been preserved.

1. Thoracoepigastric vein
2. Superficial fascia of breast
3. Latissimus dorsi muscle
4. Serratus anterior muscle (lowest digitations)
5. Lateral cutaneous branch intercostal nerve VIII (posterior branch)
6. Lateral cutaneous branch intercostal nerve VIII (anterior branch)
7. Upper pointer: Nipple (mammary papilla) Lower pointer: Areola
8. Mammary body
9. External abdominal oblique muscle