2. AXILLARY REGION Or FOSSA
THIRD SESSION
AXILLARY REGION
Or FOSSA

5. Pyramidal shape with 4 walls, base . and apex
Anterior or pectoral wall
Posterior or scapular wall
Medial or costal wall
Lateral or humeral wall (bony wall)
Apex
Base

6. Pectoral wall
1- superficial layer:Pectoralis major and its fascia

7. Pectoral wall
2- deep layer: Pectoralis minor and subclavius and clavipectoral fascia

10. Scapular wall
1-Subscapularis muscle
2-Teres major
3-Latissimus Dorsi

14. Costal wall 1-Serratus anterior muscle
2-First four ribs and intercostal muscles

15. Humeral wall 1-intertubercular groove
2-coracobrachialis and biceps muscles

17. Apex of axillary fossa

18. Base of axillary fossa

20. Pectoral region 1-pectoralis major 2-pectoralis minor 3-subclavius
Pectoral and clavipectoral fascia

26. Clavipectoral Fascia
Three anatomical elements that perforate this fascia :
1- cephalic vein
2-thoracoacromial artery and vein
3-lateral pectoral nerve

27. Scapular region Ant. Scapular region 1-subscapularis muscle
Post. Scapular region
1-supraspinatus muscle
2-infraspinatus muscle
3-teres minor muscle
4-teres major muscle

28. Subscapularis muscle

32. Rotator cuff Subscapualris muscle Supraspinatus muscle
Infraspinatus muscle
Teres minor muscle

36. Axillay spaces
Quadrangular space
Triangular space

41. Serratus anterior muscle
Costal region
Serratus anterior muscle

44. Long thoracic(c5,c6,c7)

45. Deltoid region
Deltoid muscle