Neurovascular Structure

• Initial part of Brachial Plexus pass between anterior and middle scalene

• pases posterior to clavicle

• deep to pectoralis minor

• axilla which is anatomical space

What part of Brachial plexus

Roots

C5-T1 ventral rami

• C5 + C6 roots = Upper Trunk

• C7 root = Middle Trunk

• C8 + T1 root = Lower Trunk

• The anterior division of lower trunk from = medial cord

• the posterior division of all trunk form = posterior cord

• the anterior division of superior and middle trunk form= lateral cord

• arises from lateral cord

• has fibres from C5-C7

• leaves axilla by piercing caracobrachialis muscle

• arises from posterior cord

• has fibres from C5-C6

• leaves axilla and moves posteriorly

• arises from posterior cord

• has fibres from C5-T1

• leaves axilla and moves posteriorly to humerus and in radial groove

• arises from medial and lateral cord

• has fibres from C6-T1

• leaves axilla

• arises from medial cord

• has fibres from C8-T1

• leaves axilla

move anteriorly to the surgical neck of humerus

move posteriorly to the surgical neck of humerus

the bifurcation of brachial artery into radial and ulna