i 7 8 



THE INVOLUNTARY NERVOUS SYSTEM 



Nucleus and nuclei, ambiguus, 5, 8, u, 

 52, 134, 137. 



facial, 5, 8, 137. 



hypoglossal, 5. 



intercalates of Staderini, n, 



135, 136. 

 masticatorius of the tngemmal, 



4, 6, 7- 



oculomotor, 4. 



salivatory, 137. 



trochlearis, 4. 



(ESOPHAGUS, innervation of, 73. 



motor nerve cells of unstriped muscle 



of, 52, 56, 61. 



peristaltic contraction of, 109. 

 Origin of Vertebrates, 45, 144, 154. 

 Oxygen, absorption of, by secreting 



glands, 91, 124, 125. 



PERIPATUS, muscles of, 156. 



segmental excretory organs of, 129. 

 Petromyzon, chromaffine cells of, 140. 



action of adrenalin on heart of, 143. 

 Pig, innervation of bladder of, 57. 

 Plexus, pelvic, 53, 54, 55, 56, 154. 



vesical, 54, 56. 

 Proctodeum, 33. 



RABBIT, action of adrenalin on coronary 

 vessels of heart of, 48. 



inhibitory nerves of sphincter muscles 



of, 72. 



innervation of bladder of, 57. 



sphincter muscle of stomach of, 51. 

 Kami communicantes, 10, 12, 15, 22. 

 grey, 12, 14. 



white, 12, 13, 14, 17, 24, 99. 



Rat, movements of intestine of, 118. 

 Reciprocal innervation of muscles of 

 crayfish claw, 74, 146. 



of heart, 82, 154. 



of intestine, 53, 74. 



involuntary, of eye, 98. 



of leech, 146, 148. 



of urogenital organs, 42. 



of vascular tissue, 153. 



Rectum, innervation of, 24, 53, 56, 59. 



Reflex action, i. 



myenteric, no, 116, 117, 118, 119, 



122. 



- primary, 2, 5, 8, 134. 

 Reflex paths of the involuntary nervous 



system, 9, 135. 

 of the voluntary nervous system, 



6, 7. 9, ". J34- 



SCORPION, appendages, 4. 



muscles, 3. 

 Secretin, 86, 127. 



Segmentation, cranial, 3, 5, 8, 64, 130, 135, 



155- 



double, 3, 5, 8, 64, 128, 130, 155. 



Snake, heart of, 83. 



Spinal cord, anterior horn, 5, 68, 99. 



lateral horn, 5, 132, 133. 



posterior horn, 5, 8, 134. 



pyramidal tracts, 22. 



Spleen, innervation of muscles of, 35. 

 Stomach, innervation of, 51, 73. 

 Substantia gelatinosa Rolandi, 8. 

 Sweat, secretion of, 37, 123. 

 Sympathetic ganglia, action of nicotin on, 



IS.- 



cervical, inferior, 14, 16, 34, 36. 



- superior, 10, 16, 36, 67, 125. 



coccygeal, 38. 



collateral, 24, 36, 39. 



connexion with central nervous 



system, 16. 



spinal nerves, 16. 



mesenteric, inferior, 15, 16, 36, 39, 



44. 54. 59, 7 2 > 73, 152. 



superior, 15, 36, 39, 72, 117, 



152. 



origin of grey rami from, 12. 



ovarian, 15, 39. 



post-ganglionic fibres of, 15. 



prevertebral, 15. 



- renal, 15, 16, 36, 39. 



semilunar, 15, 16, 36, 39. 



solar, n, 12, 15, 117. 



spermatic, 15, 39. 



stellate, 14, 16, 34, 36, 37, 38, 48, 



67. 



vagrant, 17, 27, 99, 151. 



vertebral or lateral, 15, 16, 18, 19, 



21, 24, 36, 59, 69, 70, 153. 



nervous system, arrangement of con- 



nector fibres and excitor 

 neurons, 18, 19. 

 distinctiveness of enteral and, 



151- 

 genesis of, in Annelids, 154. 



history of, 10. 



phylogenetic origin of, 139. 



segmental nature of, 22, 64. 



TELEOSTEAN, Auerbach's plexus in, 114. 



chromaffine cells in, 140. 

 Tortoise, accelerator nerves of heart of, 



34- 



heart of, 25, 80, 83, 102, 104. 



nerve cells in heart of, 84. 

 Trilobite, 45. 



UREA, 94. 



Urodceum, 33, 44, 56, 152. 



VAGINA, muscles of, 38. 

 WOLFFIAN body, 40. 



YOHIMBIN, 91, 124. 



ZUCKERKANDL'S body, 140. 



