Shetty Prakashchandra, Nayak Satheesha B, Kumar Naveen, Thangarajan Rajesh, D'Souza Melanie Rose
Associate Professor, Department of Anatomy, Melaka Manipal Medical College, Manipal University , Madhav Nagar, Manipal, Karnataka, India .
Professor and Head, Department of Anatomy, Melaka Manipal Medical College, Manipal University , Madhav Nagar, Manipal, Karnataka, India .
J Clin Diagn Res. 2014 Feb;8(2):133-4. doi: 10.7860/JCDR/2014/7082.4029. Epub 2014 Feb 3.
Knowledge of normal and anomalous formation of brachial plexus and its branches is of utmost importance to anatomists, clinicians, anesthesiologists and surgeons. Possibility of variations in the origin, course and distribution of branches of brachial plexus must be kept in mind during anesthetizing the brachial plexus, mastectomy and plastic surgery procedures. In the current case, the medial pectoral nerve arose directly from the middle trunk of the brachial plexus and the lateral pectoral nerve arose from the anterior division of the upper trunk of the brachial plexus. The lateral pectoral nerve supplied the pectoralis major and the medial pectoral nerve supplied pectoralis major and pectoralis minor muscles through two separate branches.
了解臂丛神经及其分支的正常和异常形成，对解剖学家、临床医生、麻醉师和外科医生极为重要。在进行臂丛神经麻醉、乳房切除术和整形手术时，必须牢记臂丛神经分支的起源、走行和分布存在变异的可能性。在本例中，胸内侧神经直接发自臂丛神经的中干，胸外侧神经发自臂丛神经上干的前股。胸外侧神经支配胸大肌，胸内侧神经通过两个独立分支支配胸大肌和胸小肌。
