INDEX 



643 



Spinal cord, long ascending arms of dorsal 

 root fibres, 467 

 long ascending fibre tracts, 451 

 longitudinal section of six days' 



chick embryo, 453 

 lumbar enlargement of, 449, 454 



segments of, 44Q 

 main motor fibre systems of, 465 

 marginal' bundle of Lowenthal, 472 



zone, 455 

 medial fillet (lemniscus), 468 

 membranes of, 428 



arachnoid, 428 



blood-vessels of, 460 



dura mater, 428 



pia mater, 428 



spinal dura, 428 



technic of, 430 

 mixed spinal ner\e, 430 

 motor cells of anterior horn, 450 

 multipolar ganglion cells of, 131, 445, 



450 

 myelogenetic method of determining 



fibres, 465 

 neuroglia cells, 459 



fibres, 459 

 neurone systems of, 427 

 nucleus, Darkschewitsch's, 471 

 Deiter's, 472 

 funiculi cuneati, 468 

 gracilis, 468 

 origin of fibres of white matter, 449 



of posterior columns of. 449 

 oval bundle of Flechsig, 473 

 peripheral motor or efferent neurone 

 system, 424, 447 

 sensory or afferent neurone system, 



425, 432 

 pia mater, spinalis, 428, 454 

 posterior columns, 449, 454 



funiculus, 454, 467 



horns. 454 



median septum, 454 



nerve roots, 456 



root fibres, 456 

 postero-lateral grooves, 454 



sulci, 454 

 processus reticularis, 455 

 pyramidal decussation, 470 



tracts, 470 

 reflex arcs, 474 

 relation to spinal ganglion, 449 



Spinal cord, reticular process, 454, 461 

 root cells. 447, 450, 457 

 rubro-spinal tract, 472 

 sacral segments of, 464 

 schematic section of, 455 

 scheme of neurone relations of, 466 

 section through cervical enlarge- 

 ment of, 461 



through lumbar enlargement, 454 



through mid-thoracic region, 461 



through six-da_\' chick embryo, 453 



through twelfth thoracic segment, 

 461 

 septo-marginal tract, 473 

 shape of, 448 



short fibre systems of, 451, 468, 474 

 shorter intersegmental tracts, 474 

 size of, 448 

 spino tectal tract, 471 



thalamic tract, 468 

 technic of, 451, 471 

 thoracic segments of, 449 

 tract from interstitial nucleus of 



Cajal, 471 

 tracts of, 449, 465; see Tracts 

 variations in structure at different 



levels, 461 

 veins of, 460 

 ventral gray columns, 454 



commissure, 455 

 white, 456 



white columns, 454 

 white commissure, 456 



matter, 426, 449, 456 

 zona spongiosa, 455 



terminalis, 456 

 zone of Lissauer, 449, 456 

 Spinal ganglia, 432, 434 



amphicj'tes, 433 



capsule of, 432 



development of, 424 



technic of, 447, 452 

 ganglion cells, 435 442, 449 



capsules of, 435 



central processes of, 442 



classification of, 433 



collaterals from, 451, 453 



descending arms from central pro- 

 cesses of, 442 



development of, 424 



Dogiel's classification, 433 



ectodermic origin, 422 



