Spinal nerve plexuses ( plxs ; Galen (c192) ) : A network of communicating branches (Winslow, 1733) between three or more spinal nerves (Camper, 1760); examples are the cervical plexus (Molinetti, 1675), brachial plexus (Camper, 1760), lumbar plexus (Vesalius, 1543), and sacral plexus (Vesalius, 1543). These plexuses (Galen, c192) were identified in macrodissected adult animals except humans in the second century by Galen; see translations of Duckworth (1962, pp. 230-264) and May (1968, pp. 598-603).