The sympathetic nerves, in mammals, arise from (a) sacral nerves (b) 3 rd , 7 th , 9 th and 10 th cranial nerves (c) thoracolumbar nerves (d) cervical nerves.
Option C Sympathetic nervous system forms a part of autonomic nervous system that consists of nerves which connect the visceral receptors and effectors with the central nervous system through the crania and spinal nerves. Sympathetic nerves arise from thoracolumbar nerves.
