Question

Which regions of the brachial plexus are the primary targets of the supraclavicular approach?

a) Roots and trunks
b) Divisions and cords
c) Cords and branches
d) Trunks and divisions

Answer 1

The primary targets of the supraclavicular approach to the brachial plexus are the roots and trunks, accessible above the clavicle and before dividing into further segments of the plexus.

Step-by-step explanation:

The regions of the brachial plexus that are the primary targets of the supraclavicular approach are the roots and trunks. This approach is generally used for accessing the plexus above the clavicle, near where the roots merge to form the trunks. The brachial plexus is organized into five regions: roots, trunks, divisions, cords, and branches. Rami from the spinal nerves C5-C8 and T1 merge to form the roots, which then combine to create the upper, middle, and lower trunks. These trunks divide into anterior and posterior divisions, which in turn join to form the lateral, medial, and posterior cords. Each cord then gives rise to specific peripheral nerves that innervate the upper limb.