INDEX 



721 



Nerves, pineal, 591, 592 



pneumogastric (vagus), 530 



profundus, 482, 489 



sacral, 537 



sensory, 516, 563 



somatic motor, 489, 522 

 sensory, 523 



spinal, 85, 518, 532, 537, 625, 654 

 accessory, 482, 493, 514, 523 



splanchnic, 531, 537 



sympathetic, 486, 537 



terminal, 478, 482 



thoracic, 537 



trigeminal, 482, 489, 523, 527, 609 



trochlearis, 482, 510, 523, 527, 625 



vagus, 482, 484, 485, 523, 530, 537, 

 609, 624 



vasoconstrictor, 390 



vasodilator, 390 



ventral, 7, 478 



vertebral, 537 



vestibular, 529, 600, 603 



vidian, 537 



visceral motor, 485, 524 

 sensory, 524 

 Nervous center, 7 



elements, 467 



system, 5, 6, 8, 9, 10, 12, 17, 20, 21, 

 30, 65, 467-562, 630 

 autonomic, 535-54°, 537 

 sympathetic, 486, 535-540, 537 



tissue, 145 

 Nervus terminalis, 482 

 Nest, 47, 49, 52 

 Nest-building fishes, 47 

 Nettle cell, 6, 30 

 Neural arch, 23, 204, 206, 244, 656 



crest, 85, 87, 558, 603 



fold, 88, 541 



gland, 20 



groove, 541 



plate, 72, 73, 75, 81, 82, 85, 541, 623 



tube, 72, 73, 84, 85, 86, 86, 87, 88, 91, 

 541, 558, 637, 640, 642, 651 

 Neurapophysis, 206 



Neuraxon (axon or neurite), 146, 147, 470 

 Neurenteric canal, 4, 82, 84, 88, 637, 638 

 Neurite (neuraxon), 467, 470, 470, 521, 



552 

 Neurobio taxis, 551, 552 

 Neuroblasts, 551, 552 

 Neurochord cell(s), 515 



Neurofibrils (fibrillae), 146, 148, 469 

 Neurogenesis, 552 

 Neuroglia, 149 

 Neurohumors, 447 

 Neurolemma, 471, 523, 556, 557 



sheath, 149, 489, 522 

 Neuromasts, 568, 569, 656 

 Neuromeres, 619, 619, 621, 622, 623, 633, 



634, 644, 653, 653 

 Neuromeric, 615, 620 

 Neuromerism, 634 

 Neuromuscular spindle, 571 

 Neuron, 147, 469, 472, 472, 494, 499, 515, 

 520, 522, 565 



afferent (sensory), 469, 472, 520, 565 



association, 516, 517, 520 



efferent (motor), 469, 470, 472 

 Neuropore, 82, 84, 478, 640 

 Neurosensory cells, 467, 469, 472 

 "Neurostoma," 657 

 Neurotendinous spindle, 571 

 Neutrophiles, 162, 364 

 Nevus, 176, 177 

 Newman, 27 

 Newts, 25, 336 

 New World monkeys, 32, igi 

 Nipple, 54, 180 



supernumerary, 181, 182 

 Nissl bodies, 148, 522 

 Nitrogenous compounds, 399 



wastes, 399 

 Node of Ranvier, 149, 523 



sino-auricular, 357 

 Nodosum ganglion, 530 

 Nodule, 314 



Non-deciduate placenta, 121 

 Non-epithelial tissues, 140 

 Non-medullated nerve fibers, 149 

 Non-metameric, 11, 30 

 Non-placentals, 26, 27 

 Nordic, 33, 179 

 Normoblast, 367 

 Notharctidae, 33 



Notochord, 16, 17, 19, 20, 21, 23, 23, 30, 

 31, 72, 74, 75, 81, 82, 84, 86, 87, 

 91, 153, 204, 209, 244, 515,632, 

 651, 656, 657, 658, 660, 66r 

 Nuchal flexure, 542, 543 

 Nucleus (Nerve) amygdaloid, 504 



caudate, 504, 546 



cuneatus, 549 



dentate, 513, 549 



