392 



INDEX 



Plexus, myenteric, 351 



pelvic, 351 



pericellular, of spinal ganglion, 65 

 of sympathetic ganglion, 345 



pulmonary, 349 



solar, 349 



submucous, 351 



sympathetic, 345, 348 



vesical, 354 



Polarity of the neuron, 50 

 Poles of cerebral hemisphere, 232 

 Pons (Varoli), 114, 123 



basilar or ventral part of, 124, 147 



dorsal or tegmental part of, 124, 149 



form, 123 



internal structure, 147 



longitudinal fasciculi, 147 



nuclei of, 148 



taenia of, 148 



transverse fibers of, 147 

 Ponticulus. See T&nia of fourth ventricle. 

 Portio major N. trigemini, 125 



minor N. trigemini, 125 

 Postganglionic fibers, 337, 343 

 Precuneus, 240 

 Preganglionic fibers, 337, 344 

 Pressure, apparatus of sensibility to, 66 

 Presubiculum, 277 

 Processus reticularis. See Reticular formation of 



spinal cord. 

 Projection centers, 290 



fibers, 297 

 Proprioceptor, proprioceptive, 72, 99, 100, 183, 



185, 311 



Prosencephalon, 24, 25, 31, 36, 113 

 Protoplasm, 17 



Psalterium. See Commissure, hippocampal. 

 Pulvinar, 214, 217, 227 

 Purkinje, cells of, 207 

 Putamen, 254, 255 

 Pyramid (or pyramis) of cerebellum, 198 



of medulla oblongata, 119, 136 



of vermis, 198 

 Pyriform lobe, 116, 268, 277 



RADIATION (or radiatio), auditory or acoustic, 

 261 



of corpus callosum, 243, 245 



occipitothalamica. See Radiation, optic. 



optic, 227, 261, 264 



sensory, 264 



thalamic, 216, 217, 260, 263 



thalamotemporal, 264 



Radix descendens (mesencephalica) N. tri- 

 gemini. See Root, mesencephalic N. V. 



N. facialis, 175 



Ramus communicans, 335, 346 

 gray, 335, 347 

 white, 335, 347 



dorsal, 58 



ventral, 58 



Ranvier, constrictions or nodes of, 47 

 Receptor, 19, 53, 91 

 Recess, lateral, of fourth ventricle, 125 



lateralis fossae rhomboideae, 125 



optic, 223 



pineal, 221 



suprapineal, 221 

 Reflex act, 91 



Reflex arc, 20, 53, 91, 92, 93, 327 

 auditory, 331 



of brain stem, 328, 329, 330, 331, 332 

 for coughing and vomiting, 330 . 

 of medulla oblongata, 328, 329, 330 

 myenteric, 340 

 optic, 332 

 pupillary, 332, 333 

 respiratory, 330 

 scratch, 94 



of spinal cord, 91, 92, 93, 94, 328 

 vestibular, 328, 329 

 visceral, 340 



Regeneration of nerve-fibers, 52 

 Reil, island of. See Insula. 

 Respiratory apparatus, 330 

 Restiform body, 122, 143, 205 



medial part of, 205 



Reticular formation (or substance), 80, 136, 144 

 Retina, 225 



Rhinencephalon, 25, 32, 115, 265 

 Rhombencephalon, 25, 31, 32, 35, 36, 113 

 Rhombic lip, 195 

 Rod and cone cells, 226 

 Rolando, fissure of. See Sulcus centralis. 

 substantia gelatinosa of, 80 

 tubercle of. See Tuberculum cinereum. 

 Root of abducens nerve, 123 

 of accessory nerve, 76, 123 

 of acoustic nerve, 123 

 anterior spinal. See Root, ventral, 

 dorsal, 58, 76, 95, 96, 97 

 of facial nerve, 123 

 field. See Sensory root field, 

 of glossopharyngeal nerve, 123 

 of hypoglossal nerve, 123 

 mesencephalic, N. V. 155, 156 

 of oculomotor nerve, 130 

 posterior, spinal. See Root, dorsal, 

 spinal, 78 



of trigeminal nerve, 124, 125 

 of trochlear nerve, 191 

 of vagus nerve, 123 

 ventral, 58, 76 



Rostrum of corpus callosum, 243 

 Rudiment of hippocampus, 244, 267, 270 



SACCULE, 193 



Saccus vasculosus, 28, 29 



Scarpa, ganglion of. See Ganglion, vestibular. 



Schultze, comma-tract of, 97, 107 



Schwalbe, vestibular nucleus of. See Nucleus, 



medial vestibular. 



Schwann, sheath of. See Neurilemma. 

 Sea-anemones, 17, 19 

 Segmentation of spinal cord, 74 

 Semicircular canals, 193 

 Septomarginal bundle or fasciculus, 97, 107 

 Sensation (or sensibility) of cold, 105, 306 



of hearing, 185, 186, 187, 309 



of heat, 105, 306 



muscular, 72, 99, 100, 311 



of pain, 68, 103, 105, 306 



of pressure, 303 



of sight, 225, 228 



of smell, 265 



of taste, 181 



of touch, 66, 77, 101, 303 



visceral, 336 



