354 



INDEX AND GLOSSARY 



Tubercle, anterior, of thalamus, an 

 eminence on the dorsal surface; 

 formed by the Nucleus anterior 

 thalami, 162 



Tuberculum acusticum of fishes 

 (part of the Area acustico- 

 lateralis), 148, 149, 152, 200 

 of mammals (the dorsal cochlear 



nucleus), 201 



cinereum, an eminence on the 

 lateral aspect of the medulla 

 oblongata produced chiefly by 

 the spinal V tract and its nu- 

 cleus. 



cuneatum, an eminence on the 

 dorsal surface of the lower end 

 of the medulla oblongata later- 

 ally of the Clava produced by 

 the nucleus of the Fasciculus 

 cuneatus, 130, 139, 141, 156, 

 164, 176, 177, 188 

 fascia- dentata?, 220 

 olfactorium (lobus parolfactorius 

 of EDINGER), the intermediate 

 olfactory Nucleus, lying in the 

 Substantia perf orata anterior ; cf . 

 Area olfactoria, 219, 220, 273 

 Tunnel of COHTI, 197 

 TI'KCK, column of, the ventral cor- 



tico-spinal Tract. 

 Ti -UN-Kit, W. A., 194 

 Tympanic membrane, Tympanum. 

 See Membrane, tympanic. 



cerebration, 297, 309, 

 311 



mind, 29<i, 297, 309 

 Unconsciousness, 297 

 Uncus, the hook-shaped extremity of 

 the Gyrus hippocampi, part of the 

 Archipallium, 219, 273 



rnpleasaiitness. See Affection. 



Utricle (utriculus, recessus utriculi), 

 part of the membranous labyrinth 

 of the inner ear, 85, 183, 195, 196, 

 200, 201 



Valve of ViKfssK.Ns. Set? Velum 



medullare anterius. 

 Valvula eerehelli. See Velum medul- 



lare anterius. 

 Variable behavior. See Behavior, 



variable. 



Variation, negative, in nerve-fibers, 



VAROLI (VAROUUS). See Pons 



Varolii. 



Vas spirale, 197 



Vasomotor apparatus, the neuro- 

 muscular mechanism which con- 

 trols the amount of blood sup- 

 plied to any part, 104, 114, 232, 

 234, 235 



Veins, nerves of. See Vasomotor ap- 

 paratus. 



Velocity of nervous conduction. 

 See Nervous impulse, velocity of. 

 Velum anticum. Bee Velum medul- 

 lare anterius. 

 interpositum, the Tela chorioidea 



of the third ventricle, 

 medullare anterius, a thin portion 

 of the brain wall containing a 

 few myelinated fibers which 

 forms the roof of the fourth 

 ventricle in front of the cere- 

 bellum, 119, 154 

 posterius, a thin portion of the 

 brain wall containing a few 

 myelinated libers which forms 

 a small part of the roof of the 

 fourth ventricle immediately 

 behind the cerebellum. 

 superius. See Velum medullare 



anterius. 



transversum, a transverse fold of 

 the Tela chorioidea which marks 

 the boundary between the Di- 

 encephalon and the Telenceph- 

 alon in the embryonic brain. 

 Ventral, on the front or belly .side of 

 the body, termed Anterior in the 

 B. N. A. lists, 115 



Ventricle, a cavity within the brain 

 and spinal cord derived from 

 the lumen of the embryonic 

 Neural tube. 



fifth. See Cavum septi pellucidi. 

 first. Sec Ventricle, lateral, 

 fourth (metactt'le), the ventricle of 

 the medulla oblongata, 119, 121, 

 152, 264 



lateral (paraccele), the ventricle 

 of each cerebral hemisphere; 

 these are also called first and 

 second ventricles, 121, 170, 210, 

 222, 264 



