The video explains the attachments, nerve supply and functions of 4 muscles- pectoralis major and minor, subclavius and serratus anterior. 2 important neurovascular relations have also been discussed. 0.43 anterior axio-appendicular muscles 1.35 pectoralis major 2.35 pectoralis minor 3.05 subclavius 3.37 nerve supply and functions of muscles 6.15 serratus anterior 8.19 scapular winging 9.17 deltopectoral triangle 10.11 axillary neurovasculature