PT 5131 Lecture Notes - Lecture 3: Triceps Brachii Muscle, Flexor Carpi Ulnaris Muscle, Extensor Carpi Muscle

• School: Northeastern University
• Department: Physical Therapy
• Course: PT 5131
• Professor: Richard B Day

Document Summary

Brachial plexus: emerges, between anterior and middle scalenes, along side the subclavian artery, travels, deep to the clavicle, deep to pectoralis minor, organization, roots. C5 t1 at level of scalenes: trunks. C7 continues on as the middle trunk. C8-t1 converges to become inferior trunk: divisions. Each trunk has an anterior and posterior division: cords. Posterior cord is made from all 3 posterior divisions. Lateral cord is made from the anterior divisions of the superior and middle trunk. (think: lella always swoons michael)) Medial cord is a continuation of the anterior division of the. Long thoracic nerve (c5, c6, c7: trunks. Nerve to subclavius (superior trunk: divisions. Posterior cord: think: lay under me and rub, lower subscapular nerve, upper subscapular nerve, middle subscapular/ thoracodorsal nerve, axillary nerve, radial nerve. Lateral cord: lateral pectoral nerve, musculocutaneous nerve. Medial cord: medial pectoral nerve, medial brachial cutaneous nerve, medial antebrachial cutaneous nerve, ulnar nerve. Becomes the lateral antebrachial cutaneous nerve in the forearm.