Download Pectoral Region

Pectoral Region
Objectives
1. To become familiar with the surface anatomy of the anterior chest wall.
2. To study the mammary gland including its blood supply and lymphatic
drainage.
3. To understand the anatomy and actions of the pectoral muscles and their
fasciae.
Cutaneous vessels:
cephalic vein
begins
ends
Cutaneous peripheral nerves:
supraclavicular nerves
from
to
anterior perforating branches
from
to
lateral perforating branches
from
to
Deep fascia:
pectoral fascia
surrounds
clavipectoral fascia
surrounds
costocoracoid membrane
attachments
suspensory ligament of axilla
attachments
deltopectoral triangle:
boundaries
contents
Muscle of the superficial fascia of the pectoral region:
platysma
O:
I:
A:
n:
a: facial artery
AnIterior Axioappendicular (Pectoral) Muscles:
pectoralis major
O: clavicular head
sternocostal head
I:
A:
n:
a: pectoral branches of thoracoacromial trunk, perforating branches of
anterior intercostal arteries
pectoralis minor
O:
I:
A:
n:
a: pectoral branches of thoracoacromial trunk, perforating branches of
anterior intercostal arteries
subclavius
O:
I:
A:
n:
a: clavicular branches of thoracoacromial trunk
serratus anterior
O:
I:
A:
n:
a: lateral thoracic artery