Brachial Plexus Flashcards
Long thoracic innervates
Serratus anterior
Dorsal scapular innervates
Rhomboids
Levator scap
Medial cutaneous nerve of arm innervates
Skin on the lower third of the arm
Axillary nerve innervates
Deltoid teres minor and triceps long head
Thoracodorsal innervates
Latissimus dorsi
Result of shoulder depression on neuro vascular symptoms
Stretch upper and middle trunks over scalene
Pull lower trunk into angle formed by first rib and scalene tendon
Results of Shoulder retraction in neuro vascular symptoms
Compression of subclavian vein by tendon of subclavian muscle (not clavicle)
Result of Abduction and retraction on neuro vascular symptoms
Clavicle compression on brachial plexus
Clavicle compression of subclavian artery against scalene muscle
Result of scapular retraction in neuro vascular symptoms
Compression of brachial plexus at point where it passes between clavicle and first rib
Compression of subclavian artery at point where it passes between clavicle and first rib
Supra scapular nerve
Powers supraspinatus and infra
Who are most at risk of suprascapular nerve entrapment and why
Growing athletes because of scapular excursion- more tension on the nerve
Axillary nerve path
Central to su scap, around inferior ghj capsule, through quadrangular space
Posterior interosseous nerve innervates
Supinator muscle
Deep muscles of posterior forearm
Wrist joint
Musculocutanous nerve innervates
Coracobrachialis
Brachialis (dual innervation)
Biceps
Entrapment points for ulnar nerve
Arcade of struthers Condylar groove Arcuate ligament at cubital tunnel Pisohamate ligament at guyons canal Adductor pollicis
Entrapment of median nerve
Arcade of struthers
Bicipital aponeurosis
Pronator teres
Carpal tunnel
Ain innervates
Fdp
Fpl
Pronator quadratus
Posterior cord muscles
Subscap Latissimus dorsi Deltoid Teres major Teres minor All radial nerve innervated muscles: Triceps Anconeus Brachioradialis Ecrl/b Ecu Supinator Ei Epl epb apl Edc Edm
Klumpke palsy
Isolated lower plexus lesions
Sternocostoclavicular space contents
Roots of the plexus, subclavian artery and vein, jugular vein and neck lymphatics
Scalene triangle contents
Roots and trunks of the plexus and the subclavian artery
Costclavicular space contents
Divisions of the plexus and subclavian artery and vein
Pec minor space contents
Cords of the plexus and subclavian vein and artery
Middle finger sensation indications with brachial plexopathy
Medial middle finger changes indicate medial cord involvement
Lateral middle finger changes indicate lateral cord involvement
How long is ok for increased parasthesias after neuro gliding treatment in clinic for chronic brachial plexopathy
48 hours
