This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. and compartments of the PECTORALIS FASCIA

- The only contents is ;

- Pectoralis fascia continue inferiorly as fascia of the anterior abdominal wall

- It continues laterally-once it leaves the lateral edge of Pectoralis Major, it becomes AXILLARY FASCIA

AXILLARY FASCIA - Continuous with the - Forms the floor of the

CLAVIPECTORAL FASCIA - Deep to the Pectoralis major muscle, the CLAVIPECTORAL FASCIA invests the and . - It forms the costocoracoid membrane above pectoralis minor, and the suspensory ligament of axilla below pectoralis minor. The suspensory ligament drags the axillary fascia upwards when the arm is raised, forming the actual “pit” of the armpit - Pectoralis major, wrapped up in pectoralis fascia Subclavius

Lateral pectoral nerve and

Costocoracoid membrane

Pectoralis minor Suspensory ligament of axilla

Axillary fascia Axillary fascia

Supraspinous, Infraspinous and Subscapular fascia - The supraspinatus, infraspinatus and subscapularis muscles are contained in their own little fascial compartments

Deltoid Fascia - The deltoid has its own fascia, continous with the and infraspinatus fascia - It has numerous fascial septa which separate the fascicles of the deltoid

Supraspinatus Spine of scapula fascia Clavicle Deltoid fascia

Infraspinatus fascia Pectoralis fascia Infraspinatus fascia

Subscapularis Fascial septa fascia

Pectoralis fascia, infraspinatus fascia and deltoid fascia all continue down the arm to form the brachial fascia