ANATOMY OF THE BREAST

ORIBA DAN LANGOYA, MBchBMakerere University School of

MedicineSurgery Club Mini ward Round

INTRODUCTIONEmbryology Epithelial/mesangial-

glandular tissues of breast 4th to 6th weeks

Develops from milk streak

thoracic mammary bud appears at approx. 49day. Rest involutes

Dermally derived Lies cushioned in fat Between layers of superficial pectoral fascia

Anatomy Breasts form a 2ND ary

sexual feature of females.

Breast lies upon the deep pectoral fascia, anterior, and inferiorly, external oblique and its aponeurosis as the latter forms the anterior wall of the sheath of rectus abdominis

Cross section

Blood Supply

Arteries Internal thoracic artery Intercostal arteries The axillary artery

Lymph Drainage Lateral quad drain into

ant axillary or pect Some vessels comm

with lymph vessels of the opp breast & with those of the anterior abdominal wall

The med quad drain into internal thoracic group

Lymphatic Drainage

THE END!!!

Life is a succession of lessons enforced by immediate reward, or, oftener, by immediate chastisement. - Ernest Dimnet