Principles and practice of spinal adjustment; for the use of students and practitioners . especially communicate with the three divisions of thefifth cranial nerve, and adjustment of the vertebrae causingimpingement of these nerves has a marked effect upon theteeth and mouth. 3. The fifth thoracic spinal nerves afifect the teeth andgums, as well as the other structures of the head and neck,by reason of their communication with the superior cervicalganglion. The Innervation of the Thyroid Gland.^—The innervationof the thyroid gland is derived from the following nerves: 1. The upper four cervica
Principles and practice of spinal adjustment; for the use of students and practitioners . especially communicate with the three divisions of thefifth cranial nerve, and adjustment of the vertebrae causingimpingement of these nerves has a marked effect upon theteeth and mouth. 3. The fifth thoracic spinal nerves afifect the teeth andgums, as well as the other structures of the head and neck,by reason of their communication with the superior cervicalganglion. The Innervation of the Thyroid Gland.^—The innervationof the thyroid gland is derived from the following nerves: 1. The upper four cervical spinal nerves influence thethyroid gland through their connection with the superiorcervical ganglion which sends a branch of communication tothe vagus, branches of which form the pharyngeal plexuswhich supplies the thyroid gland. 2. The fifth and sixth cervical nerves influence the thyroidgland by reason of their communication with the middlecervical ganglion of the sympathetic. The thyroid branchesof this ganglion directly supply the thyroid gland; they ac- 132 SPINAL ADJUSTMENT. Fig. 21. Parts Influenced by the ThirdDorsal Nerve. CRANIUM, FACE AND NECK 133 company the inferior thyroid artery to the thyroid communicate on the artery with the cardiac nerves, andin the gland with the recurrent and external laryngeal The seventh and eighth cervical nerves also influencethe thyroid, since they join the inferior cervical ganglionwhich sends fibres to the middle cervical ganglion, and withthe cardiac and recurrent laryngeal nerves. 134 SPINAL ADJUSTMENT
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