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Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of breast and anterolateral thoracic wall

Sagittal section of right breast

Image #114-7

KEYWORDS: Breast.

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Dissection of breast and anterolateral thoracic wall
Sagittal section of right breast
The breast of a 20 year old woman has been sectioned in a sagittal plane which passes through the nipple. The specimen is unfixed and, as a result of this, the lactiferous ducts are not clearly visible in the photograph. (Later examination of the specimen after it had been fixed following photography revealed the presence of six lactiferous ducts close to the plane of section. There were no obvious lactiferous sinuses along these ducts.)
1 . Pectoral fascia
2 . Mammary gland lobules
3 . Pectoralis major muscle (cut across)
4 . Pectoralis minor muscle (cut across)
5 . Mammary body (gland lobules not distinguishable)
6 . Suspensory ligaments of breast
7 . Skin (cut section)
8 . Lobule of fat
9 . Nipple (mammary papilla)
10 . Area occupied by lactiferous duct (see note above)