Human anatomy, including structure and development and practical considerations . dle cervical ganglion. 3. The communicating branch to the inferior laryngeal nerve frequendyaccompanies the inferior cerxical cardiac nerve ; it joins the inferior laryngeal pos-terior to the subcla\ian artery. The visceral branches comprise : (i) the vertebral us ^nA (2) the inferiorcervical cardiac nerve. THE SVMIATIIMTIC SYSTEM OF NERVES. 1363 I The vertebral plexus ( plexus vcrtclnalis) is a closely woven net-work ofhbres which fc^Uows the ourse and distribution of the vertebral artery in the neck and c
Human anatomy, including structure and development and practical considerations . dle cervical ganglion. 3. The communicating branch to the inferior laryngeal nerve frequendyaccompanies the inferior cerxical cardiac nerve ; it joins the inferior laryngeal pos-terior to the subcla\ian artery. The visceral branches comprise : (i) the vertebral us ^nA (2) the inferiorcervical cardiac nerve. THE SVMIATIIMTIC SYSTEM OF NERVES. 1363 I The vertebral plexus ( plexus vcrtclnalis) is a closely woven net-work ofhbres which fc^Uows the ourse and distribution of the vertebral artery in the neck and cranium. Imo. 1133. I. ril) II. thoracic nerveIntercostal arteryIII. thoracic ner%e Intercostal arteryV. thoracic ner\e XI. thoracic ganglion : imniediately below it is the XII. XII. rib Diaphragm I. lumbar ganglion and III. lumbar ganglia, fusedIlio-inguinal nerse IV. lumbarganglion IV. lumbar nerve V. lumbar ganglion — Inter;janglionic association cord I. sacral ganglion Anterior crural ner\eII. sacral ganglion III. sacral ner\-eIV. sacral ganglion. I. thoracic ganglion partiallyblended with inferior cervical ganglion II. thoracic ganglion — Great splanchnic nerve Small splanchnic nerve Least splanchnic nerve Semilunar ganglion acdsolar plexus Dissection showing thoracic, lumbar and sacral portions of ri.^-ht gangliated cord and their branches. 2 The inferior cervical cardiac nerve (n. cardiacus inferior) (Fig. 1132).sometimes arising from the first thoracic gangUon, descends in the thorax posterior to 1364 HLMAN thesubclavain artt^rv, inosculates with the middle cervical cardiac and inferior laryngealnerves and terminates in the deep cardiac i)le.\us. THE THORACIC PORTION OF TlIK OANOLl ATId) CORD. The thoracic portion of the gantjliated cortl (pars tlioracalis systcinatis sMiipa-thetici) consists of a series of eleven, twelve, ten or even fewer irrej^ularly triangular,fusiform or oval ganglia (gu. thoracalia), situated lateral to the bo
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