C7C6C5C4C3C2C1T1T2T3T4T5T6T7T8T9T10T11T12L1S1S2S3S4S5L2L3L4L5C8GreaterLeastLesserSOMATIC PLEXUSESVISCERAL PLEXUSESCervical plexusanterior rami C1 to C4Brachial plexusanterior rami C5 to T1Lumbar plexusanterior rami L1 to L4Sacral plexusanterior ramiL4 to S4Parasympathetic [X]S2 to S4 pelvic splanchnic nerves(parasympathetic)Pulmonary branchPulmonary branchesCardiac branchesCardiac plexusThoracic aortic plexusEsophageal plexusPrevertebral plexusVagal trunkGanglion imparSacral splanchnic nervesSplanchnicnervesLumbar splanchnicnerves