11 CONTENTS. 



IV,— The First Spinal Nerve 72 



V. — Comparative Review of the First Spinal Nerve 78 



VI, — Summary of the Spinal Nerves 83 



Section 5. — The Nerves of the Vagus Group, .... 85 



I. — The Roots and Ganglia of the Vagus Group 86 



I. — The Communis Root of the N. Glossopharyngeus. . 86 



2. — The Communis Root of the Vagus 88 



3. — The Cutaneous Root of the Vagus qo 



4.— The Motor Roots of the Vagus and Glosso- 

 pharyngeus 91 



z. — The Nucleus Ambig^us gt 



ii. — The Motor Vagus 93 



til. — The Motor Glossopharyngeus 94 



iv. — General Considerations 95 



5. —The Root of the R. Lateralis Vagi 98 



II, — The N. Glossopharyngeus 99 



III, — First Truncus Branchialis Vagi loi 



IV, — Second Truncus Branchialis Vagi 103 



V. — Third Truncus Branchialis Vagi 104 



VI.— Fourth Truncus Branchialis Vagi ... ,,..., ^. .^. .- . . 105 



VII. — Other Visceral Rami of the Vagus 106 



I. — Ramus Intestinalis 106 



2. — GEsophageal Rami 106 



3. — Ramus Cardiacus 107 



4. — Pharyngeal Rami 107 



5. — Branchio-motor Rami '. 107 



z'.— Ramus for M. Transversus Dorsalis 107 



a. — Ramus for M. Retractor Arcus Branchii Dor- 

 salis 107 



iii. — Ramus for M. Pharjmgeus Transversus ro8 



iv. — Ramus for M. Pharyngo-clavicularis Internus, 108 

 -y.— Ramus for M. Pharyngo-clavicularis Ex- 



temus 108 



VIII. — Rami Cutauei Dorsales Vagi iii 



IX. — Ramus for M. Trapezius (Accessorius) 117 



X. — Ramus Lateralis Vagi 119 



I. — Ramus Suprateraporalis Vagi 119 



2. — The First Lateral Ramulus 120 



3. — The Second Lateral Ramulus 121 



4. — The Third to Fifth Lateral Ramuli 122 



XI.— Summary of the Vagus Group 123 



