Kinesiology 2222A/B Lecture Notes - Lecture 8: Medial Pectoral Nerve, Dorsal Scapular Nerve, Long Thoracic Nerve

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2222A/B
• Professor: Gillian Corbo

Document Summary

Explain the transitional areas in the upper limb. Name the different muscular regions of the upper limb and be able to discuss their main functions. Categorize the muscles of the upper limb and explain their characteristics including: origin, insertion, innervation, function. Area of passage for nerves and blood vessels to get to different regions. Structures and transitional areas to help protect blood vessels and nerves that pass through. All act on scapula (except subclavius, pectoralis major and latissimus dorsi) to allow: elevation and depression, protraction and retraction, superior and inferior rotation. Posterior muscles mostly retract, rotate and stabilize scapula: divide into superficial and deep layer. Anterior muscles mostly protract and stabilize scapula. Origin: external occipital protuberance, nuchal ligament, spinous process c7-t12. Insertion: lateral 1/3 clavicle, acromion, spine of scapula: superior: elevation of scapula, middle: retraction of scapula, superior and inferior: rotation of scapula (fibers work together to rotate. Innervation: spinal accessory nerve (cnxi: not from brachial plexus.