Brachial Plexus Flashcards
What is the brachial plexus
Its a grouping of nerves located around the shoulder.
Its roots are C5-T1
Trunks
Superior C5 - C6
Middle C7
Inferior C8 - T1
Divisions
Anterior and posterior
Cords
Lateral cord
Medial cord
Posterior cord
Cords and branches
Lateral cord consists of
Musculocutaneous
Median nerve
Posterior cord
Axillary
Radial
Medial cord
Median
Ulnar
Brachial plexus - summary
What are the nerves roots and what do they innervate
From the lateral cord
Musculocutaneous nerve
C5 -C7 and supplies the flexors of the arm
Lateral root ofthe median nerve
C6-C7 supplies most flexors of forearm
From the medial cord
Ulnar nerve
C8-T1 anterior muscles of forearm and hand
Medial root of medial nerve
C8-T1
From the posterior cord
Axillary nerve
C5-C6 supplies teres minor, deltoid and GH joint
Radial nerve
C5-T1 supplies extensors of arm and forearm
