EMBRYOLOGY INCLUDED BRIEFLY SURGERY CLUB OF MAKCHS MINI GROUND ROUND

1. ANATOMY OF THE BREAST
ORIBA DAN LANGOYA, MBchB
Makerere University School of Medicine
Surgery Club Mini ward Round

2. INTRODUCTION
Embryology
 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

3. 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

4. Cross section

5. 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

6. Lymphatic Drainage

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