Figure 2.

Gross dissection of the brachial plexus (BP). (a) FAB technique: ink is observed staining all the roots of the BP nerves except the suprascapularis nerve (Sp). (b) FAD technique: ink is observed around the suprascapularis (Sp), subscapularis (Sb), axillaris (Ax) and musculocutaneous nerves (Mc). FAB technique = the forelimb to be blocked is abducted 90º; FAD technique = both forelimbs are adducted; Cr = cranial; Cd = caudal; JV = jugular vein; AV = axillary vein; U-M = ulnaris-medianus nerves; R = radialis nerve; Mc = musculocutaenous nerve; Ax = axillaris nerve; Sb = subscapularis nerve