Board Review Regional Anesthesia - paws.gru.edu

61 Pages·2016·2.14 MB·English

by  Hopkins, Heather L.

Board Review
Regional Anesthesia
Gustavo A. Lozada, M.D.
Mass General
February 28, 2012
1. The components of the brachial plexus, from
proximal to distal, are:
A. Roots, Divisions, Cords, Trunks, Branches
B. Trunks, Roots, Cords, Divisions, Branches
C. Roots, Trunks, Divisions, Cords, Branches
D. Roots, Branches, Divisions, Cords, Trunks

1. The components of the brachial plexus, from
proximal to distal, are:
• Answer:
– (C) Roots, Trunks, Divisions, Cords,
Branches
• Remember: Randy Travis Drinks Cold Beer
2. The brachial plexus is formed by the
following nerve roots:
A. C2, C3, C4, C5, C6
B. C6, C7, C8, T1, T2
C. C4, C5, C6, C7
D. C5, C6, C7, C8, T1
E. C6, C7, C8, T1
Brachial Plexus
• Roots:
– C5-T1 (anterior rami)
• Trunks:
– Superior: C5-6
– Middle: C7
– Inferior: C8-T1
• Divisions:
– 3 anterior
– 3 posterior
• Separate innervation of ventral and dorsal halves
of the upper extremity
Brachial Plexus
• Cords:
(based on relationship to axillary artery)
– Lateral – ant div of superior and middle trunks
– Posterior – post div of superior, middle, and inferior
trunk
– Medial – inferior trunk
Brachial Plexus
• Branches:
– Musculocutaneous N. : lateral cord
– Median N. : lateral root from lateral cord
medial root from medial cord
– Axillary N.: posterior cord
– Radial N.: posterior cord
– Ulnar N.: medial cord