1. PECTORAL REGION
AND
SHOULDER

2. Pectoral Region/Shoulder – Surface Anatomy

3. Pectoral Muscles
Pectoralis major-
Pectoralis minor- attached to ribs 3,4, 5.
Attaches to the coricoid process of the scapula.
Norm. moves scapula, can elevate the ribs.
Subclavius-under clavicle, attached to first rib.
Helps fixate clavicle.
Shoulder joint is attached to the humerus, mostly
By muscle.
Strong joint…..only place the appendicular
Skeleton attached to the axial skeleton…???
Note limited bony attachment of
upper limb to axial skeleton.

6. Breast Anatomy

7. BLOOD SUPPLY TO BREAST

8. Pectoral Region - Fascia
Clavipectoral fascia – surround
subclavius/pectoralis minor
1. Costocoracoid membrane –
upper segment (named for
med/lat attachments)
* pierced by 3 structures:
- Cephalic v.
- Thoracoacromial a.
- Lateral Pectoral n.
2. Suspensory Ligament of Axilla –
lower segment – fuses with axillary
fascia at axillary floor

9. Shoulder Muscles - Deltoid

11. Shoulder Muscles – Rotator CuffI T

14. Posterior Shoulder Muscles & Spaces
Teres Major
Triceps brachii, long head
Quadrangular space
Triangular space
Triangular interval

15. Army Over – Navy Under= Artery over, vein underneath

16. Shoulder Muscles – Serratus Anterior

17. Shoulder Muscles – Serratus Anterior
Note location of nerve.

20. Subdeltoid (subacromial) Bursa

21. “Shoulder Separation”

22. Shoulder Dislocation

23. Scapular Anastomosis

24. Scapular Anastomosis