Principles and practice of spinal adjustment; for the use of students and practitioners . Fig. 25. Iarts Influenced by the SeventhDorsal Nerve. ORGANS OF THE THORAX 141 pulmonary branch of the vagus to form the pulmonary third and fourth ganglia especially, and the first andsecond more rarely have this connection. 5. The third thoracic nerves, however, have the mostmarked influence upon the lungs. They supply the entireextent of the pleurae and the upper lobe of both lungs. 6. Various other spinal nerves indirectly influence thelungs by their connection with nerves influencing other
Principles and practice of spinal adjustment; for the use of students and practitioners . Fig. 25. Iarts Influenced by the SeventhDorsal Nerve. ORGANS OF THE THORAX 141 pulmonary branch of the vagus to form the pulmonary third and fourth ganglia especially, and the first andsecond more rarely have this connection. 5. The third thoracic nerves, however, have the mostmarked influence upon the lungs. They supply the entireextent of the pleurae and the upper lobe of both lungs. 6. Various other spinal nerves indirectly influence thelungs by their connection with nerves influencing other or-gans, the proper function of which has much to do with thecondition of the lungs or their restoration to a normal statewhen they are diseased. 142 SPINAL ADJUSTMENT. Fig. 26. Parts Influenced by tbe EighthDorsal Nerve. CHAPTER III The Innervation of the Organs of the Abdomen The Innervation of the Peritoneum.—The innervation ofthe peritoneum is derived from practically the same nervesthat supply the large and small intestines (q. v.). Its upperportions are supplied by the vagus and phrenic nerves, whilein the lower portions of the abdomen it receives its innerva-tion from the splanchnic nerves and white rami from thelower dorsal and upper lumbar nerves. The Innervation of the Diaphragm.—The innervation ofthe diaphragm is derived from the following nerves: 1. The first to fourth cervical spinal nerves influence thediaphragm by reason of their communication with the vagusnerve, which assists in the formation of the phrenic ordiaphragmatic plexus, and also sends fibres directly to thediaphragm. 2. The third, fourth and fifth cervical nerves by enteringinto the formation of the phrenic nerves have an importanteffect upon the diaphragm. 3. The midd
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